With Irradiation Or Heating Of Object Or Material Patents (Class 250/341.1)
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Patent number: 9093810Abstract: A high efficiency electro-optic dendrimer based technology for nanophotonic integrated circuit devices is presented. In particular, a high power terahertz (THz) source is implemented using an electro-optic dendrimer via electro-optic rectification. Electro-optic rectification provides inherent power scalability, because, pump-THz conversion is not limited either by emission saturation or by heat dissipation. Low dielectric loss and high electro-optic coefficient of dendrimer along with a waveguide structure provides higher output power and tunable THz power generation. A dendrimer fiber array is also disclosed by means of which the input/output signals are connected to multiple components and devices.Type: GrantFiled: October 25, 2011Date of Patent: July 28, 2015Assignee: Applied Research and Photonics, Inc.Inventors: Anis Rahman, Aunik K. Rahman
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Patent number: 9086374Abstract: A highly advantageous terahertz spectrometer with phase modulation and associated method are disclosed which utilize a second harmonic for generating an error signal to control a phase modulator to at least reduce nulls of an interference pattern.Type: GrantFiled: April 25, 2014Date of Patent: July 21, 2015Inventors: Joseph R. Demers, Bryon L. Kasper
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Patent number: 9075002Abstract: A probe array (1) for an imaging system for examining an object (19) comprising at least one emitter (7) for emitting radiation, a plurality of detectors (9) for detecting radiation and means for directing radiation emitted by the at least one emitter (7) to the object (19) and for directing radiation reflected from the object (19) to at least two of the plurality of detectors (9) wherein in use the emitted radiation is scanned by means (21) across the object (19).Type: GrantFiled: February 11, 2005Date of Patent: July 7, 2015Assignee: TeraView LimitedInventors: Bryan E. Cole, Simon J. Chandler
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Patent number: 9052238Abstract: An apparatus for analyzing, identifying or imaging an target including first and second laser beams coupled to a pair of photoconductive switches to produce CW signals in one or more bands in a range of frequencies greater than 100 GHz focused on and transmitted through or reflected from the target; and a detector for acquiring spectral information from signals received from the target and using a multi-spectral heterodyne process to generate an electrical signal representative of some characteristics of the target. The lasers are tuned to different frequencies and a frequency shifter in the path of one laser beam allows the terahertz beam to be finely adjusted in one or more selected frequency bands.Type: GrantFiled: September 20, 2013Date of Patent: June 9, 2015Assignee: Emcore CorporationInventors: Ronald T. Logan, Jr., Joseph R. Demers
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Publication number: 20150147493Abstract: A method for producing infra-red inert substrates, including moulded polymeric articles, films, fibers and coatings and other organic and inorganic materials, by incorporating into the substrate or onto the surface of the substrate an effective amount of a dispersed bis-oxodihydroindolylen-benzodifuranone colourant. The thus obtained, also claimed substrates so produced are reflective and transparent to much of the near infra red radiation not reflected. There are multiple applications for cases of devices comprising electronic components, outdoor construction elements, outdoor furniture, automotive, marine or aerospace parts, laminates, artificial leather or textile materials, as well as in polychrome printing processes and optical fibers. The thus obtained substrates can also be subjected to laser welding. New bis-oxo-dihydroindolylen-benzodifuranone compounds are also claimed.Type: ApplicationFiled: January 30, 2015Publication date: May 28, 2015Applicant: BASF SEInventors: Thomas Ruch, Philippe Bugnon, Paul Brown, Véronique Hall-Goulle
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Publication number: 20150145764Abstract: Described herein are optical proximity detectors, methods for use therewith, and systems including an optical proximity detector. Such optical proximity detectors include an analog front-end and a digital back-end. In certain embodiments, the digital back-end includes a dynamic gain and phase offset corrector, a cross-talk corrector, a phase and magnitude calculator, and a static phase offset corrector. The dynamic gain and phase offset corrector corrects for dynamic variations in gain and phase offset of the analog front-end due to changes in temperature and/or operating voltage levels. The crosstalk corrector corrects for electrical and/or optical crosstalk associated with the analog front-end. The phase and magnitude calculator calculates phase and magnitude values in dependence on the corrected versions of digital in-phase and quadrature-phase signals received from the analog front-end. The static phase offset corrector corrects for a static phase offset of the optical proximity detector.Type: ApplicationFiled: September 24, 2014Publication date: May 28, 2015Inventors: Itaru Hiromi, Philip V. Golden, David W. Ritter, Pradeep Bhardwaj, Steven Herbst
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Patent number: 9040922Abstract: A THz frequency range antenna is provided which comprises: a semiconductor film (3) having a surface adapted to exhibit surface plasmons in the THz frequency range. The surface of the semiconductor film (3) is structured with an antenna structure (4) arranged to support localized surface plasmon resonances in the THz frequency range.Type: GrantFiled: June 4, 2010Date of Patent: May 26, 2015Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Jaime Gomez Rivas, Vincenzo Giannini, Audrey Anne-Marie Berrier, Stefan Alexander Maier, Marion Matters-Kammerer, Lorenzo Tripodi
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Publication number: 20150136989Abstract: An aperture array structure used in a method of measuring characteristics of a specimen by applying an electromagnetic wave to an aperture array structure on which the specimen is held, and detecting frequency characteristics of the electromagnetic wave scattered by the aperture array structure. The aperture array structure includes a first principal surface, a second principal surface opposed to the first principal surface, and a plurality of apertures extending through the aperture array structure in a direction perpendicular to the first principal surface and the second principal surface. An opening area of each aperture at the first principal surface is smaller than an opening area of each aperture at the second principal surface.Type: ApplicationFiled: January 26, 2015Publication date: May 21, 2015Inventors: Takashi Kondo, Seiji Kamba, Yuichi Ogawa
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Publication number: 20150136988Abstract: An egg identification system for determining viability of an avian egg is provided. Such a system includes an emitter assembly configured to emit electromagnetic radiation toward an egg. A detector assembly is axially aligned with the emitter assembly to detect electromagnetic radiation transmitted through the egg. The detector assembly is spaced-apart from the egg during operation thereof such that the detector assembly does not contact the egg. The detected electromagnetic radiation is used to generate an output signal. The output signal is processed to determine whether there exists a periodic variation or an aperiodic perturbation in an intensity of the electromagnetic radiation transmitted through the egg corresponding to action of a heart or embryo movement, wherein the existence of the periodic variation or aperiodic perturbation indicates that the egg is viable. An associated method is also provided.Type: ApplicationFiled: November 10, 2014Publication date: May 21, 2015Inventors: Joel James Walukas, Ramin Karimpour
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Publication number: 20150129768Abstract: Provided is a measuring apparatus, including: an irradiation unit configured to irradiate an object to be examined with an electromagnetic wave, the object to be examined being brought into contact with a window member; a sensing unit configured to sense the electromagnetic wave from the object to be examined that is brought into contact with the window member; and a dielectric constant adjusting unit configured to change a dielectric constant of the window member.Type: ApplicationFiled: April 23, 2013Publication date: May 14, 2015Inventors: Takayuki Koizumi, Oichi Kubota
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Publication number: 20150129769Abstract: A method for measuring the presence or absence of an object to be measured in a specimen or the quantity thereof. The method includes filtrating the object to be measured from the specimen using as a physical filter, a void-arranged structural body having a plurality of void portions penetrating in a direction perpendicular to a primary surface thereof so as to hold the object to be measured by the void-arranged structural body; irradiating an electromagnetic wave on the void-arranged structural body holding the object to be measured; and detecting characteristics of an electromagnetic wave scattered by the void-arranged structural body.Type: ApplicationFiled: January 21, 2015Publication date: May 14, 2015Inventors: Seiji Kamba, Takashi Kondo, Nobuaki Shirai, Toshiki Okada, Makoto Hasegawa
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Publication number: 20150129767Abstract: A system includes a sensor body that has a folded optical waveguide configured in a “U” shape, wherein the waveguide is configured to convey infrared energy from one end of the waveguide to the other end of the waveguide.Type: ApplicationFiled: November 11, 2013Publication date: May 14, 2015Applicant: General Electric CompanyInventors: Andrian Ivanovich Kouznetsov, David Benjamin Henderson, Daniel James Gongloff
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Patent number: 9029778Abstract: Detecting characteristics of a test subject at a checkpoint. Embodiments may include exposing a single test subject to electromagnetic radiation at a security checkpoint. They may further include determining how the electromagnetic radiation interacts with different portions of the single test subject. They may further include determining different material properties for the different portions of the single test subject by examining how the electromagnetic radiation interacts with the different portions of the single test subject. They may further include providing an indication of the different material properties of the different portions of the single test subject, wherein providing an indication of the different material properties of the different portions of the single test subject comprises distinguishing between different material properties.Type: GrantFiled: November 2, 2012Date of Patent: May 12, 2015Assignee: Telesecurity Sciences, Inc.Inventors: Douglas P. Boyd, Steven A. Johnson, David T. Borup, James W. Wiskin, Manuel Berrondo
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Publication number: 20150123000Abstract: A gas sensor for measuring concentration of a predetermined gas comprises a light source arranged to emit pulses of light, a measurement volume, a detector arranged to receive light that has passed through the measurement volume, and an adaptable filter disposed between the light source and the detector. The gas sensor has a measurement state in which it passes at least one wavelength band which is absorbed by the gas and a reference state in which said wavelength band is attenuated relative to the measurement state. The adaptable filter is arranged to change between one of said measurement state and said reference state to the other at least once during each pulse.Type: ApplicationFiled: December 5, 2012Publication date: May 7, 2015Inventors: Håkon Sagberg, Britta Grennberg Fismen, Kari Anne Hestnes Bakke, Jon Tschudi, Ib-Rune Johansen, Knut Baeroe Sandven
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Publication number: 20150102224Abstract: A stability of at least one foulant within a hydrocarbon-based fluid sample may be determined where the hydrocarbon-based fluid sample may have or include, but is not limited to a hydrocarbon fluid and foulant particles. The fluid sample may have a viscosity ranging from about 0.5 cSt to about 5000 cSt. The hydrocarbon-based fluid sample may be centrifuged, and a laser light (in the near-infrared region) with a detector may be applied to the hydrocarbon-based fluid sample. At least one transmittance measurement from the laser light passing through the hydrocarbon-based fluid sample may be used to measure foulant flocculation. A foulant stability reserve measurement may be obtained by comparing a first transmittance measurement of the centrifuged hydrocarbon-fluid sample to a second transmittance measurement of a non-centrifuged hydrocarbon-fluid sample.Type: ApplicationFiled: October 16, 2013Publication date: April 16, 2015Applicant: Baker Hughes IncorporatedInventor: Marco Respini
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Publication number: 20150104563Abstract: A device and method for inspecting the deposition of hot melt onto an object to be assembled. A comparison is made between sensed images of the object after application of the hot melt and a predetermined standard to determine if the construction integrity of the object made with the hot melt is within the range established by the standard. Composite images from a sensor operating in the infrared band and another sensor reveal physical features of the object, as well as provide registration information about the placement of the hot melt on the assembled object. Composite images also present a way to visually ascertain ongoing or past production operations in order to trace problems with the raw material used for the object, as well as for the construction process of the object with the hot melt.Type: ApplicationFiled: October 14, 2013Publication date: April 16, 2015Inventors: Kevin James Lowe, Graham Terence Manders, Stelian Nicolaie Vasiu, James Brashear, Aiqiu Zuo, Denis Tran, Mehdi Bahrami
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Publication number: 20150097118Abstract: A method and a system for measuring an optical asynchronous sample signal. The system for measuring an optical asynchronous sampling signal comprises a pulsed optical source capable of emitting two optical pulse sequences with different repetition frequencies, a signal optical path, a reference optical path, and a detection device. Since the optical asynchronous sampling signal can be measured by merely using one pulsed optical source, the complexity and cost of the system are reduced. A multi-frequency optical comb system using the pulsed optical source and a method for implementing the multi-frequency optical comb are further disclosed.Type: ApplicationFiled: March 1, 2013Publication date: April 9, 2015Applicant: BEIHANG UNIVERSITYInventors: Zheng Zheng, Xin Zhao, Lei Liu, Jiansheng Liu
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Patent number: 9000376Abstract: An apparatus for detecting electromagnetic radiation within a target frequency range is provided. The apparatus includes a substrate and one or more resonator structures disposed on the substrate. The substrate can be a dielectric or semiconductor material. Each of the one or more resonator structures has at least one dimension that is less than the wavelength of target electromagnetic radiation within the target frequency range, and each of the resonator structures includes at least two conductive structures separated by a spacing. Charge carriers are induced in the substrate near the spacing when the resonator structures are exposed to the target electromagnetic radiation. A measure of the change in conductivity of the substrate due to the induced charge carriers provides an indication of the presence of the target electromagnetic radiation.Type: GrantFiled: July 2, 2013Date of Patent: April 7, 2015Assignees: Massachusettes Institute of Technology, Trustees of Boston UniversityInventors: Harold Y. Hwang, Mengkun Liu, Richard D. Averitt, Keith A. Nelson, Aaron Sternbach, Kebin Fan
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Publication number: 20150090883Abstract: Methods, devices, and systems for imaging tissue and other samples or samples using infrared (IR) transmissions from coherent transmission sources, such as a wide range, tunable, quantum cascade laser (QCL) designed for the rapid collection of infrared microscopic data for medical diagnostics across a wide range of discrete spectral increments. The infrared transmissions are transmitted through, reflected from, and/or transreflected through a sample, and then magnified and/or focused prior to being detected by a detector. After detection, the sample related image data is used to assess the sample. Such methods, devices, and systems may be used to detect abnormalities in tissue, for example, before such abnormalities can be diagnosed using art cytopathological methods. The methods, devices and systems may also optionally include a visible light detection subsystem and/or a motion control subsystem to assist in control and processing of imaging.Type: ApplicationFiled: August 6, 2014Publication date: April 2, 2015Inventors: Max DIEM, Charles A. DIMARZIO
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Publication number: 20150083917Abstract: This disclosure provides systems, methods and apparatus for touch and gesture recognition, using a field sequential color display. The display includes a processor, a lighting system, and an arrangement for spatial light modulation that includes a number of apertures, and devices for opening and shutting the apertures. A light directing arrangement includes at least one light turning feature. The display lighting system is configured to emit visible light and infrared (IR) light through at least a first opened one of the plurality of apertures. The light turning feature is configured to redirect IR light emitted through the opened aperture into at least one lobe, and to pass visible light emitted by the display lighting system through the opened aperture with substantially no redirection.Type: ApplicationFiled: September 23, 2013Publication date: March 26, 2015Inventors: John Michael Wyrwas, Paul Eric Jacobs, Evgeni Petrovich Gousev, Russell Wayne Gruhlke, Chung-Po Huang, Hae-Jong Seo, Xiquan Cui, Jacek Maitan
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Publication number: 20150083918Abstract: A method and a system for detecting the presence of propellant gas in a gaseous sample exploit laser light especially in the 3.30-3.5 ?m range. The propellant can be propane, n-butane, i-butane, dimethyl ether, methyl ethyl ether, HFA 134a, HFA 227, or any other propellant exhibiting absorption in the requisite wavelength range. The presence of the application of this method in leak testing of propellant-containing containers such as aerosols or fuel canisters, permits high-speed, high accuracy leak detection capable of replacing existing testing methods.Type: ApplicationFiled: May 2, 2012Publication date: March 26, 2015Inventors: Lukas Emmenegger, Jana Jágerská, Béla Tuzon
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Patent number: 8981300Abstract: An electromagnetic wave pulse measuring device, includes an elastic vibration wave generating section which irradiates a predetermined area of a sample with an elastic vibration wave, an electromagnetic wave pulse generating section which irradiates the predetermined area, which is irradiated with the elastic vibration wave, with an electromagnetic wave pulse, and an electromagnetic wave pulse detecting section which measures a waveform of the electromagnetic wave pulse modulated in the predetermined area by the elastic vibration wave. The timing at which the electromagnetic wave pulse detecting section measures the waveform of the electromagnetic wave pulse is a timing at which a phase angle of the elastic vibration wave has a predetermined value when the elastic vibration wave generating section generates the elastic vibration wave.Type: GrantFiled: March 13, 2013Date of Patent: March 17, 2015Assignee: Canon Kabushiki KaishaInventor: Oichi Kubota
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Patent number: 8969807Abstract: A carrier includes attachment holes to which a catalyst attaches, and non-attachment holes to which the catalyst does not attach. An attachment quantity measurement device includes an electromagnetic wave output device that outputs a terahertz wave toward the carrier, an electromagnetic wave detector that detects the terahertz wave which has transmitted through the carrier, a reference value obtainer that obtains, based on a result detected by the electromagnetic wave detector, any one of an absorption rate, a group delay, and a dispersion of the terahertz wave in the non-attachment holes, and an attachment quantity obtainer that obtains, based on the result detected by the electromagnetic wave detector and the result obtained by the reference value obtainer, a weight or a density of the catalyst present in the attachment holes.Type: GrantFiled: November 16, 2012Date of Patent: March 3, 2015Assignee: Advantest CorporationInventors: Motoki Imamura, Shigeki Nishina
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Patent number: 8963090Abstract: Provided is a compact terahertz-wave generating apparatus that generates terahertz waves at high output and high efficiency. A terahertz-wave generating apparatus includes an electromagnetic-wave resonator including a hollow fiber in which an electromagnetic-wave gain medium is disposed, the electromagnetic-wave gain medium generating terahertz waves when exciting energy is supplied thereto, wherein the terahertz waves are amplified in the electromagnetic-wave resonator and are taken from the electromagnetic-wave resonator, wherein the diameter of the hollow fiber is set at one or more times and ten times or less as large as the inside diameter of the hollow fiber, in which the electromagnetic-wave gain medium is disposed, at which a cutoff frequency in a terahertz-wave propagation mode TE11 is provided.Type: GrantFiled: April 23, 2012Date of Patent: February 24, 2015Assignee: Canon Kabushiki KaishaInventor: Hironobu Sai
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Patent number: 8957378Abstract: A THz radiation detector comprising a vertical antenna separated from a suspended platform by an isolating thermal air gap for concentrating THz radiation energy into a smaller suspended MEMS platform upon which a thermal sensor element is located. THz photon energy is converted into electrical energy via a thermally isolated air gap between plates of a coupling capacitor separated by a plurality of nano-tip spacers that determine the gap distance. The capacitor couples energy from the antenna to the thermal sensor.Type: GrantFiled: June 18, 2012Date of Patent: February 17, 2015Assignee: International Business Machines CorporationInventors: Dan Corcos, Michel Despont, Danny Elad, Bernd Gotsmann, Lukas Kull, Thomas E. Morf
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Suspended wideband planar skirt antenna having low thermal mass for detection of terahertz radiation
Patent number: 8957379Abstract: A novel and useful THz radiation detector comprising a suspended wideband planar skirt antenna for achieving low thermal mass and high electrical performance. The antenna comprises only the perimeter or “skirt” of the antenna. The antenna has multiple loops where each loop comprises a conductor that covers the perimeter or skirt and includes multiple inner and outer arms. The total length of each loop has a length substantially one wavelength. One or more ports or load impedances are connected at the center of the antenna and shared by one or more loops. A thermal sensor detects the heat generated in the load resister and converts the heat energy to an electrical signal which is transmitted to read out circuitry via signal lines that run together with a holding arm. The holding arm functions as both a path for the read out signals as well as providing mechanical support for and effectively suspending the antenna.Type: GrantFiled: October 30, 2012Date of Patent: February 17, 2015Assignee: International Business Machines CorporationInventors: Dan Corcos, Danny Elad, Noam Kaminski, Bernhard Klein, Lukas Kull, Thomas Morf -
Publication number: 20150041654Abstract: The present invention relates to a method for non-destructive, contact or non-contact inspection of composite assemblies using radiation having a frequency in the terahertz range (10 GHz-10 THz) of the spectrum, whereby said method is implemented as an embodiment of the system for non-destructive, contact or non-contact inspection of composite assemblies using terahertz radiation, that is also claimed under the present invention. Said method enables the forming of a two or three-dimensional image of the material structure of an assembly of composite materials, from which image detection and analysis of material conditions of the composite materials forming said composite assemblies is possible, irrespective of the way that the composite materials forming said composite assemblies were joined together, and without the need for a priori knowledge about the structural characteristics, shape or configuration of said composite materials (for instance layered, foam, placed on metal substrate).Type: ApplicationFiled: August 8, 2013Publication date: February 12, 2015Applicant: Stichting SRON - Netherlands Institute for Space ResearchInventors: Andrei M. Barychev, Alena V. Belitskaya, Herman H. Van der Linden, Willem Jellema
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Publication number: 20150036135Abstract: Disclosed are apparatus, kits, methods, and systems that include a radiation source configured to direct radiation to a sample; a detector configured to measure radiation from the sample; an electronic processor configured to determine information about the sample based on the measured radiation; a housing enclosing the source, the detector, and the electronic processor, the housing having a hand-held form factor; an arm configured to maintain a separation between the sample and the housing, the arm including a first end configured to connect to the housing and a second end configured to contact the sample; and a layer positioned on the second end of the arm, the layer being configured to contact the sample and to transmit at least a portion of the radiation from the sample to the detector.Type: ApplicationFiled: October 17, 2014Publication date: February 5, 2015Inventors: Kevin J. KNOPP, Robert L. GREEN, Brendon D. TOWER, Christopher D. BROWN, Gregory H. VANDER RHODES
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Patent number: 8946641Abstract: Described herein is a method by which active millimeter wave radiation may be used to detect and identify the composition of concealed metallic, concealed non-metallic, concealed opaque or concealed semi-transparent materials based on their optical properties. By actively radiating a semi-transparent target anomaly with multiple millimeter wave radiation frequencies, the dielectric properties of the target anomaly can be identified. The dielectric properties of the target anomaly may then be compared to a library of dielectric properties attributed to semi-transparent materials of interest. This method will allow active millimeter wave radiation technology to identify the likely composition of targeted semi-transparent materials through absorption and illumination measurements attributed to the dielectric properties of the targeted composition.Type: GrantFiled: April 6, 2012Date of Patent: February 3, 2015Assignee: The United States of America, as Represented by the Secretary, Department of Homeland SecurityInventors: Barry Thomas Smith, James Christopher Weatherall, Jeffrey Brian Barber
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Publication number: 20150028215Abstract: A system, for calculating an object location within a portal, includes a portal map formed by a plurality of infra-red beams. The system further includes a broken beam detector for detecting and recording, in response to an object moving through the portal map, data indicative of one or more broken beams of the plurality of infra-red beams. The data includes first data indicative of an initial position of the object within the portal, second data indicative of a subsequent position of the object within the portal, and third data including one or more time records. The system also includes at least one broken beam analyzer for obtaining the data from the broken beam detector, the broken beam analyzer calculating the object location based on at least one of the first data, the second data, and the third data.Type: ApplicationFiled: August 7, 2014Publication date: January 29, 2015Inventor: Brian McLaughlin
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Patent number: 8941065Abstract: Disclosed is a space perception device which includes a transceiver unit transmitting and receiving a signal; a processing unit analyzing signals transmitted and received through the transceiver unit to search location information of an obstacle at a space; and a vibration unit providing a user with location information of an obstacle at a space in response to a control of the processing unit. The vibration unit includes a plurality of vibrators having different three-dimensional coordinates.Type: GrantFiled: September 14, 2012Date of Patent: January 27, 2015Assignee: Electronics and Telecommunicatons Research InstituteInventors: Han Young Yu, Yark Yeon Kim, Yong Ju Yun, Won Ick Jang, Eun-ju Jeong, Changho Han
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Publication number: 20150021482Abstract: The invention relates to a contamination recording apparatus (12) for recording contaminations in a flowing hydraulic fluid (10) to be examined in aircraft (11a), which comprises a conveying device (14) for conveying the flowing hydraulic fluid (10), a light source (34) for exposing the hydraulic fluid (10) flowing in the conveying device (14) to light (46), and a detection device (36) for recording a fraction of the light (46) absorbed by the exposed hydraulic fluid (10), the light source (34) being formed in order to emit light (46) having a wavelength in the near-infrared range. The invention furthermore relates to a hydraulic system (11) equipped with such a contamination recording apparatus (12) and to an aircraft (11a), and also to a method for recording contaminations in a hydraulic fluid (10) flowing in a hydraulic system (11) of an aircraft (11a).Type: ApplicationFiled: July 31, 2014Publication date: January 22, 2015Inventors: Gerhard MÜLLER, Paul SUMIT, Andreas HELWIG, Volker BAUMBACH
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Patent number: 8935960Abstract: A kit for detecting the presence of an explosive includes a pulsed focused energy source located at a target distance away from a substrate, the energy having a magnitude sufficient to release the internal energy of an explosive if present on the substrate and thereby generate an acoustic wave. The kit also includes a detector adapted to detect the acoustic wave at a detection distance away from the substrate.Type: GrantFiled: January 20, 2011Date of Patent: January 20, 2015Assignee: Massachusetts Institute of TechnologyInventors: Charles M. Wynn, Robert W. Haupt, Sumanth Kaushik, Stephen T. Palmacci
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Patent number: 8937288Abstract: The invention generally relates to systems and methods for mass spectrometry analysis of microorganisms in samples.Type: GrantFiled: September 9, 2014Date of Patent: January 20, 2015Assignee: Purdue Research FoundationInventors: Robert Graham Cooks, Ahmed Mohamed Hamid, Alan Keith Jarmusch, Zheng Ouyang
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Publication number: 20150014541Abstract: A method for measuring the concentration of a gas component in a measuring gas, wherein a semiconductor laser is periodically actuated by a current ramp to scan a selected absorption line in a wavelength-dependent manner and to determine the concentration of the gas component based on the reduction in the light intensity as a result of the absorption of the light at the location of the absorption line.Type: ApplicationFiled: July 7, 2014Publication date: January 15, 2015Inventors: Daniel Depenheuer, Christoph Wolfgang Marquardt
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Patent number: 8933407Abstract: A terahertz-wave element includes a waveguide (2, 4, 5) that includes an electro-optic crystal and allows light to propagate therethrough, and a coupling member (7) that causes a terahertz wave to enter the waveguide (2, 4, 5). The propagation state of the light propagating through the waveguide (2, 4, 5) changes as the terahertz wave enters the waveguide (2, 4, 5) via the coupling member (7).Type: GrantFiled: December 13, 2013Date of Patent: January 13, 2015Assignee: Canon Kabushiki KaishaInventor: Toshihiko Ouchi
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Publication number: 20150008327Abstract: Concatenated distributed feedback lasers having multiple laser sections laid out in series are disclosed. The concatenated distributed feedback lasers utilize quantum cascade core designs to produce optical gain in the mid- infrared region and may generate several wavelengths simultaneously or sequentially. Methods of making along with methods of using such devices are also disclosed.Type: ApplicationFiled: January 11, 2013Publication date: January 8, 2015Inventors: Catherine Genevieve Caneau, Feng Xie, Chung-En Zah
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Publication number: 20150008326Abstract: An electromagnetic wave pulse measuring device, includes an elastic vibration wave generating section which irradiates a predetermined area of a sample with an elastic vibration wave, an electromagnetic wave pulse generating section which irradiates the predetermined area, which is irradiated with the elastic vibration wave, with an electromagnetic wave pulse, and an electromagnetic wave pulse detecting section which measures a waveform of the electromagnetic wave pulse modulated in the predetermined area by the elastic vibration wave. The timing at which the electromagnetic wave pulse detecting section measures the waveform of the electromagnetic wave pulse is a timing at which a phase angle of the elastic vibration wave has a predetermined value when the elastic vibration wave generating section generates the elastic vibration wave.Type: ApplicationFiled: March 13, 2013Publication date: January 8, 2015Inventor: Oichi Kubota
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Publication number: 20140374602Abstract: An illumination device with an integrated thermal imaging sensor and method for using the same are disclosed. The device includes a solid state illumination source, and a thermal imager comprising a multi-pixel heat sensing device. A controller is configured to control the thermal imager, and a power source is configured to supply power to the illumination source, the thermal imager, and the controller.Type: ApplicationFiled: June 5, 2014Publication date: December 25, 2014Inventors: Joel Falcone, Rudi Blondia, Arthur John Barlow
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Publication number: 20140374601Abstract: The embodiments of the present invention are directed to applying intimate contact pressures to samples while undergoing ATR infrared interrogation. As a general mode of operation, after a solid sample is placed on the ATR element, a force actuator moves an anvil arm to apply a contact force to the sample against the ATR. Thereafter, when the scan is over, the user can see the result of the one or more scans. The force actuator may be a motor or a solenoid or other type of force actuator. The applied contact force may be a fixed force or may be a user-selectable force or may be automatically controlled through feedback from the spectrometer based on the spectroscopic signature of the sample material.Type: ApplicationFiled: June 20, 2013Publication date: December 25, 2014Inventors: Timothy M. Pastore, Kenneth J. Vachon, JR., Brendon D. Tower, Gregory H. Vander Rhodes, Aaron Poynton
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Publication number: 20140367316Abstract: A terahertz-based material identification system includes a terahertz source for transmitting a terahertz wave for interaction with an object. The interaction results in a resulting terahertz wave that is influenced by the object. A terahertz detector receives the resulting terahertz wave and is configured to output measurement data corresponding to the resulting terahertz wave. A processor is in communication with the terahertz detector for receiving the measurement data. The processor is also configured to calculate an object response signature based on the measurement data, and compare the object response signature to a set of known response signatures so as to identify the object. The material identification system may also be implemented as part of a sorting system that is configured to selectively separate the object from a mixture based on the identity of the object.Type: ApplicationFiled: December 11, 2012Publication date: December 18, 2014Applicant: TETECHS INC.Inventor: Daryoosh Saeedkia
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Patent number: 8912497Abstract: A measurement structure including an aperture array structure made of a metal and having a plurality of aperture portions, and a support base supporting the aperture array structure. The measurement structure is used in a measuring method by applying an electromagnetic wave to the measurement structure on which a specimen is held, detecting frequency characteristics of the electromagnetic wave transmitted through the measurement structure or reflected by the measurement structure, and measuring characteristics of the specimen. At least a first part of a surface of the aperture array structure proximal to the support base is joined to the support base, and at least a second part of the surface of the aperture array structure defines at least part of the plurality of aperture portions, the second part of the surface being proximal to the support base and not in contact with the support base.Type: GrantFiled: September 30, 2013Date of Patent: December 16, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Takashi Kondo, Seiji Kamba
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Patent number: 8912496Abstract: In an exemplary embodiment, an apparatus includes a sensor integrated circuit (IC) that is adapted for ambient light sensing (ALS) and/or proximity detection. The sensor integrated circuit (IC) includes an integrated analog-to-digital converter (ADC) that is adapted to convert at least one signal related to ambient light sensing (ALS) and/or proximity detection to at least one digital signal, and an integrated light emitting diode (LED) driver that is adapted to drive at least one LED. The sensor IC also includes an integrated power management unit (PMU) that is adapted to reduce power dissipation of the sensor IC by running at a low duty cycle the integrated LED driver and the integrated ADC.Type: GrantFiled: November 25, 2010Date of Patent: December 16, 2014Assignee: Silicon Laboratories Inc.Inventors: Timothy T. Rueger, William Hong, David Andreas
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Patent number: 8884228Abstract: An apparatus and process is provided to illustrate the manipulation of the internal electric field of CZT using multiple wavelength light illumination on the crystal surface at RT. The control of the internal electric field is shown through the polarization in the IR transmission image under illumination as a result of the Pockels effect.Type: GrantFiled: January 27, 2012Date of Patent: November 11, 2014Assignees: Savannah River Nuclear Solutions, LLC, Fisk UniversityInventors: Aaron L. Washington, II, Martine C. Duff, Lucile C. Teague, Arnold Burger, Michael Groza
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Publication number: 20140326886Abstract: A petroleum-based fluid sample may be centrifuged in a centrifuge vial where a light may be passed through the petroleum-based fluid sample to identify an amount of transmitted light at two or more time intervals. The stability of the foulant(s) and/or efficacy of the foulant inhibitors to prevent the destabilization of the foulants may be determined by comparing a change in the amounts of transmitted light through the petroleum-based fluid sample. The petroleum-based fluid sample may include a petroleum-based fluid, at least one foulant, and an optional additive for destabilizing the foulant(s). The additive may be or include a first component, such as but not limited to n-alkanes, iso-alkanes, alkenes, alkynes, cyclo-alkanes, natural gas, natural gas condensate, alcohols, ethers, ketones, organic acids, acetates, carbon dioxide, and combinations thereof.Type: ApplicationFiled: May 1, 2014Publication date: November 6, 2014Applicant: BAKER HUGHES INCORPORATEDInventors: David Wayne Jennings, Robert Cable, Geoffrey Charles Leonard
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Patent number: 8878134Abstract: A photoconductive antenna is adapted to generate terahertz waves when irradiated by pulsed light. The photoconductive antenna includes a first conductive region, a second conductive region, and a semiconductor region. The second conductive region is spaced apart from the first conductive region to form a gap therebetween in a top plan view of the photoconductive antenna. The semiconductor region is positioned in the gap between the first conductive region and the second conductive region in the top plan view. An interfacial surface of the semiconductor region positioned in the gap is flush with first interfacial surfaces of the first and second conductive regions. Second interfacial surfaces of the first and second conductive regions positioned on an opposite side from the first interfacial surfaces are positioned on the same side with respect to the interfacial surface of the semiconductor region positioned in the gap.Type: GrantFiled: December 20, 2012Date of Patent: November 4, 2014Assignee: Seiko Epson CorporationInventor: Satoshi Takenaka
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Publication number: 20140319354Abstract: Methods and apparatus for measuring the modal bandwidth of a multimode optical fiber as a function of wavelength are disclosed. The methods include emitting polarized light from a single-mode fiber, frequency-modulating the single-mode polarized light, and then conditioning the frequency-modulated polarized light to excite multiple modes of the multimode optical fiber. The multimode light transmitted by the multimode optical fiber is detected and analyzed by a network analyzer to determine a bandwidth for at least three different wavelengths. A controller performs a fit to the measured bandwidths using a fitting equation to determine the modal bandwidth as a function of wavelength.Type: ApplicationFiled: April 9, 2014Publication date: October 30, 2014Applicant: Corning IncorporatedInventors: XIN CHEN, Jason Edward Hurley, Daniel Aloysius Nolan, Richard Stephen Vodhanel
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Patent number: 8872114Abstract: A technology of inspecting a photoexcited carrier generation area of a photo device in a non-contact manner is provided. An inspection apparatus inspects a photovoltaic cell panel in which the photo device is formed. The inspection apparatus includes an irradiation part that irradiates the photovoltaic cell panel with pulsed light from a light receiving surface side and a detecting part (detector) that detects electric field intensity of a terahertz wave pulse, which is generated according to the irradiation of the pulsed light.Type: GrantFiled: June 12, 2012Date of Patent: October 28, 2014Assignees: Dainippon Screen Mfg. Co., Ltd., Osaka UniversityInventors: Hidetoshi Nakanishi, Masayoshi Tonouchi, Iwao Kawayama
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Patent number: 8872112Abstract: A THz radiation detector comprising a vertical antenna separated from a suspended platform by an isolating thermal air gap for concentrating THz radiation energy into a smaller suspended MEMS platform upon which a thermal sensor element is located. THz photon energy is converted into electrical energy via a thermally isolated air gap between plates of a coupling capacitor that couples energy from the antenna to the thermal sensor. The capacitor plates used for capacitive coupling of the received signal realize an electro-static actuator whereby the application of a DC bias varies the coupling capacitor gap. The DC bias causes the actuator to pull the suspended platform close to the antenna to reduce the capacitive gap, increasing the coupling capacitance, to touch the antenna array thus quickly discharging the heat induced in the sensor platform or to perform advanced readout operations, such as amplitude modulation and correlated double sampling.Type: GrantFiled: October 2, 2011Date of Patent: October 28, 2014Assignee: International Business Machines CorporationInventors: Dan Corcos, Michel Despont, Danny Elad, Lukas Kull, Thomas Morf, Benny Sheinman
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Patent number: 8866085Abstract: A differential temperature source methodology for the design of a single beam NDIR gas sensor is advanced. This methodology uses a low and a high amplitude voltage cycle to drive a closely approximated Blackbody source for generating at different times two distinct detector outputs obtained from the same detector equipped the same narrow band pass filter but strategically designed for the detection of only a particular portion of the absorption band for the gas of interest. The ratio of the high amplitude cycle detector output over the low amplitude cycle detector output is used to calibrate such an NDIR gas sensor after it is normalized by a similar ratio when there is no target gas present in the sample chamber.Type: GrantFiled: November 12, 2012Date of Patent: October 21, 2014Assignee: Airware, IncInventor: Jacob Y Wong