Patents by Inventor Stephen D. Russell

Stephen D. Russell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10460579
    Abstract: A system for detecting tampering. The system comprises a first luminescent layer adjacent to a first item of value and an optical detector operably connected to an alarm. The first luminescent layer emits a light beam, which is detected by the optical detector. Upon detection of the light beam, the optical detector activates the alarm.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: October 29, 2019
    Assignee: United States of America as represented by Secretary of the Navy
    Inventors: Stephen D. Russell, Joanna N. Ptasinski, Ayax D. Ramirez
  • Patent number: 9941136
    Abstract: A method is provided for creating a chamber on a semiconductor substrate, utilizing wet etching or dry etching, back-filling the chamber with a polymeric compound, and sealing the chamber.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: April 10, 2018
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventors: Joanna N. Ptasinski, Stephen D. Russell
  • Patent number: 9784617
    Abstract: A tunable ultra-compact spectrometer and methods for spectrometry therefor can include a single pixel and a Fresnel zone plate having a focal length at a first temperature T1 and a first wavelength ?1, and a focal point. The pixel can be twenty micrometers square and can be placed at a distance from the pixel that equal to the focal length so that the focal point is at the pixel. The Fresnel zone plate can be made of a material that causes the same focal point at the pixel at T2, but at a different wavelength ?2 than wavelength ?1. A heat source can selectively add heat to the Fresnel zone plate to cause a second temperature T2. Exemplary materials for the Fresnel zone plate can be quartz for visible wavelengths, silicon for infrared wavelength, or other materials, according to the ?(s) of interest.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: October 10, 2017
    Assignee: United States of America, as Represented by the Secretary of the Navy
    Inventors: Joanna N. Ptasinski, Stephen D. Russell
  • Patent number: 9709737
    Abstract: Photonic devices may include a first ring resonator and a second ring resonator located within the first ring resonator, the second ring resonator separated from and optically coupled to the first ring resonator. A waveguide structure is optically coupled to the first ring resonator and may be parallel bus waveguides optically coupled on opposite ends of the first ring resonator or a u-shaped waveguide wrapped substantially around the first ring resonator. A third ring resonator may located within the second ring resonator and may be separated from and optically coupled to the first ring resonator and the second ring resonator. A sensing medium may be disposed within the interior of the third ring resonator and optically coupled to the third ring resonator. The sensing medium is configured to undergo a change in refractive index responsive to one or more analytes bound to the sensing medium.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: July 18, 2017
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventors: Joanna N. Ptasinski, Stephen D. Russell
  • Patent number: 9548626
    Abstract: Power is provided to a remote device by receiving external energy from a laser source and storing the energy in a storage battery. A photovoltaic receiver capable of alignment in a preferred reception direction for receiving energy is used to receive energy from a source of excitement energy, and is configured to receive energy from a laser which is directed to the photovoltaic receiver. A charging circuit receives power from the photovoltaic receiver and is used to charge the storage battery.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: January 17, 2017
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Ayax D. Ramirez, Shannon D. Kasa, Stephen D. Russell
  • Patent number: 9450420
    Abstract: Devices and methods for conveying energy through a watertight enclosure can include placing at least one means for converting electrical energy into vibrational mechanical energy in direct contact with the enclosure. At least one means for harvesting the vibrational mechanical energy from the enclosure into electrical energy can also be placed in direct contact on the enclosure, on the opposite side of the enclosure from the conversion means. The conversion means and harvesting means both operate at a matching frequency ?. A plurality of transducers generating vibrations at frequency ? can be used in conjunction with harvester, or vice versa. Or, a plurality of transducers operating at discrete frequencies ?n can be used in conjunction with a plurality of harvesters operating at matching frequencies ?n. These configurations can be used to transmit electrical energy through the watertight enclosure without breaking the watertight integrity of the enclosure.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: September 20, 2016
    Assignee: United States of America, as Represented by the Secretary of the Navy
    Inventor: Stephen D. Russell
  • Publication number: 20160147014
    Abstract: Photonic devices may include a first ring resonator and a second ring resonator located within the first ring resonator, the second ring resonator separated from and optically coupled to the first ring resonator. A waveguide structure is optically coupled to the first ring resonator and may be parallel bus waveguides optically coupled on opposite ends of the first ring resonator or a u-shaped waveguide wrapped substantially around the first ring resonator. A third ring resonator may located within the second ring resonator and may be separated from and optically coupled to the first ring resonator and the second ring resonator. A sensing medium may be disposed within the interior of the third ring resonator and optically coupled to the third ring resonator. The sensing medium is configured to undergo a change in refractive index responsive to one or more analytes bound to the sensing medium.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 26, 2016
    Inventors: JOANNA N. PTASINSKI, STEPHEN D. RUSSELL
  • Patent number: 9329203
    Abstract: Methods for fabricating ultra-sharp nanoprobes can include the steps of providing a wafer, and patterning a silicon layer on the wafer with a plurality of geometric structures. The geometric structures can be patterned using electron-beam lithography or photolithography, and can have circular, triangular or other geometric shapes when viewed in top plan. The methods can further include the step of depositing a non-uniform cladding on the geometric structures using plasma enhanced chemical vapor deposition (PECVD) techniques, and then wet-etching the wafer. The non-uniform nature of the cladding can result in more complete etching in the areas where the cladding has lower density and incomplete etching in the areas of higher density of the non-uniform cladding. The different etching rates in the proximity of at least adjacent two geometric structures can result in the formation of ultra-sharp nanoprobes.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: May 3, 2016
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Joanna Ptasinski, Stephen D. Russell
  • Patent number: 8965674
    Abstract: A system includes a fluid reservoir containing a first fluid, a pair of fluidic channels in fluidic connection with the fluid reservoir, a counter-fluid reservoir having a second fluid that is non-miscible with the first fluid, and a pump connected to the fluid reservoir. The pump is configured to pump the first fluid from the fluid reservoir into the pair of fluidic channels. When contained in a vehicle, the system allows for control of the vehicle's orientation. The system may use sensor input to determine when to actuate the pump. Each fluidic channel may have a cross-section that varies along its length. The fluidic channels may be geometrically symmetric about the fluid reservoir. The system may be incorporated into a vehicle to control the vehicle's orientation.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: February 24, 2015
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Stephen D. Russell
  • Patent number: 8537457
    Abstract: A correlation spectrometer can include a sample cell, a plasmonic array, a light source that can be used to illuminate both the plasmonic array and the sample cell, and an infrared (IR) detector that is connected to the plasmonic array, and that is configured to receive and detect surface plasmons. The plasmonic array is modulated to transmit a surface plasmon at a predetermined resonance peaks that correspond to resonant peaks for a compound of interest (COI). If the COI is present in the sample cell, a surface plasmon having resonant peaks corresponding to the COI resonant peaks is generated in the plasmonic array and detected by the IR detector. The plasmonic can be formed with a plurality of nanoholes with different periodicities and fill factors, in order to detect multiple COI.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: September 17, 2013
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Joanna Ptasinski, Stephen D. Russell
  • Patent number: 8530885
    Abstract: A system includes a substrate having a plurality of three-dimensional photonic crystal elements directly coupled thereto. The photonic crystal elements may each partially or substantially coated with oriented graphene and may comprise undoped silicon. The graphene may be oriented in a direction parallel to or normal to the photonic crystal element and may comprise graphene flakes contained within a composite thin film. The system may also include at least one optical component, such as a waveguide, contained within the plurality of three-dimensional photonic crystal elements. A method is also provided for preparing the graphene and coating the photonic crystal elements with the graphene.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: September 10, 2013
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joanna N. Ptasinski, Stephen D. Russell
  • Patent number: 8217382
    Abstract: An optical-powered device includes a flexible substrate, a photonic bandgap layer coupled thereto, a waveguide contained within the photonic bandgap layer, and a dendrimer region contained within the waveguide. The dendrimer region may comprise more than one dendrimers. The dendrimer region emission band is within the photonic bandgap of the photonic bandgap layer. Multiple photonic bandgap layers may be included, with one or more waveguides therein. Each waveguide may have a dendrimer region therein. Electronic circuitry may be contained within a portion of the photonic bandgap layer. A light-modulating layer may be directly coupled to the photonic bandgap layer. A portion of the photonic bandgap layer may have a sensing material embedded therein. A cover layer having one or more windows may be coupled to the photonic bandgap layer. Another layer, such as a buffer layer, may be disposed between the substrate layer and the photonic bandgap layer.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: July 10, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joanna N. Ptasinski, Stephen D. Russell, J. Scott Rodgers
  • Patent number: 8211730
    Abstract: A method for manufacture of a nanophotonic device can include the step of operatively coupling a planar light source and a photodetector with an optical waveguide. The planar light source, photodetector and optical waveguide can then be monolithically integrated in direct contact with a sapphire substrate, along with an electronic component that is also in direct contact with the sapphire substrate.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: July 3, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Serey Thai, Paul R. de la Houssaye, Randy L. Shimabukuro, Stephen D. Russell
  • Patent number: 8210289
    Abstract: A microbot includes a spherical housing, first and second servomotors that are located internal to the housing and oriented horizontally and orthogonal to each other, and a plunger within the housing that selectively extends in the vertical direction. Castors are attached to each servomotor; and traction balls corresponding to each castor are placed so that each ball frictionally engages both a respective castor and the interior of the housing at the same time. As the servomotors rotate, the attached castors also rotate, which causes rotation of the traction balls and rolling of the housing, and results in translation of the microbot in the horizontal plane. As the plunger rapidly extends, it strikes the interior surface of the housing with sufficient force to cause a hopping motion of the microbot in the vertical direction.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: July 3, 2012
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Ryan P. Lu, Ayax D. Ramirez, Stephen D. Russell
  • Patent number: 8178429
    Abstract: Fabrication of a semiconductor structure is achieved by using a Dip Pen Nanolithography (DPN) tip to apply a metal catalyst to a prepared substrate. The catalyst is applied in a predetermined pattern, and crystal growth is established at the catalyst site.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: May 15, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ryan P. Lu, Ayax D. Ramirez, Stephen D. Russell
  • Patent number: 8111443
    Abstract: A plasmonic transistor device includes an electro-optic substrate and a conductive layer placed on said electro-optic substrate to establish an interface therebetween. The first conductive layer and electro-optics substrate are made of materials that are suitable for transmission of a surface plasmon along the interface. The conductive layer is further formed with a source input grating and a drain output grating, for establishing the surface plasmon. A means for varying the electro-optic substrate permittivity, such as a light source or voltage source, is connected to the electro-optic substrate. Selective manipulation of the varying means allows the user to selectively increase or decrease the substrate permittivity. Control of the substrate permittivity further allows the user to control surface plasmon propagation from the source input grating along the interface to a drain output grating, to achieve a transistor-like effect for the surface plasmon.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: February 7, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephen D. Russell, Joanna N. Ptasinski
  • Patent number: 8085459
    Abstract: A plasmonic transistor device includes an electro-optic substrate and a conductive layer placed on said electro-optic substrate to establish an interface therebetween. The first conductive layer and electro-optics substrate are made of materials that are suitable for transmission of a surface plasmon along the interface. The conductive layer is further formed with a source input grating and a drain output grating, for establishing the surface plasmon. A means for varying the electro-optic substrate permittivity, such as a light source or voltage source, is connected to the electro-optic substrate. Selective manipulation of the varying means allows the user to selectively increase or decrease the substrate permittivity. Control of the substrate permittivity further allows the user to control surface plasmon propagation from the source input grating along the interface to a drain output grating, to achieve a transistor-like effect for the surface plasmon.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: December 27, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephen D. Russell, Joanna N. Ptasinski
  • Patent number: 8063473
    Abstract: A nanophotonic device. The device includes a substrate, at least one light emitting structure and at least one electronic component. The at least one light emitting structure is capable of transmitting light and is monolithically integrated on the substrate. The at least one electronic component is monolithically integrated on the substrate. A method for fabricating nanophotonic devices is also described.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: November 22, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Serey Thai, Paul R. de la Houssaye, Randy L. Shimabukuro, Stephen D. Russell
  • Patent number: 8057388
    Abstract: A microsensor array system, comprising a pad, a plurality of actuators attached to the pad, and a plurality of microprobes, wherein substantially each microprobe in the plurality of microprobes is attached to a respective actuator in the plurality of actuators.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: November 15, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephen D. Russell, Paul R. de la Houssaye, Jamie K. Pugh, William Pugh, Dennis E. Amundson, Howard W. Walker
  • Patent number: 7906401
    Abstract: A method of tuning threshold voltages of interdiffusible structures. The method includes a step of situating an interdiffusible structure in a path of a laser and a step of illuminating the interdiffusible structure with laser energy until a desired threshold voltage is obtained.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: March 15, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ryan P. Lu, Ayax D. Ramirez, Bruce W. Offord, Stephen D. Russell