Patents Assigned to Omega Optics, Inc.
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Patent number: 11921037Abstract: Methods and apparatuses for gas detection are disclosed, including providing a device comprising: a light source configured to emit light; an array of vertical photonic crystal waveguides (VPCWs), wherein the VPCWs of the array of VPCWs are configured to slow and guide the light; and a detector array, wherein the detectors of the detector array are configured to measure the intensity of the light passing through each of the VPCWs of the array of VPCWs; wherein the VPCWs of the array of VPCWs slow and guide light having a wavelength within the absorption bands of the one or more gas species to be detected; exposing the apparatus to a gaseous environment such that gas from the environment flows through the array of VPCWs; and reading values from the detectors of the detector array to identify the presence of the one or more gas species. Other embodiments are described and claimed.Type: GrantFiled: March 8, 2021Date of Patent: March 5, 2024Assignee: Omega Optics, Inc.Inventors: Hamed Dalir, Ray T. Chen, Mohammad H. Teimourpour, Jason Midkiff
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Patent number: 11605932Abstract: A novel, monolithically integrated mid-IR optical phased array (OPA) structure which eliminates the wafer bonding process to achieve highly efficient surface emitting optical beam steering in two dimensions is disclosed. Since solar energy is about 15-20 times smaller than that at 1.55 ?m, mid-IR is more favorable for the atmospheric transmission due to lower solar radiance backgrounds. For the beam steering, thermo-optic phase shifting is used for azimuthal plane beam steering and laser wavelength tuning is used for elevation plane beam steering. The OPA structure disclosed comprises a wavelength-tunable a QCL, a 1×32 splitter, thermo-optic phase-shifters, and sub-wavelength grating emitters. The disclosed OPA provides a low-cost, low-loss, low-power consumption, robust, small footprint, apparatus that may be used with expendable UAV swarms. A LiDAR may be created by monolithically integrating a QCD with the apparatus. Other embodiments are described and claimed.Type: GrantFiled: November 9, 2020Date of Patent: March 14, 2023Assignee: Omega Optics, Inc.Inventors: Jong-Dug Shin, Ray T. Chen, Jason Midkiff
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Publication number: 20230036709Abstract: A novel, monolithically integrated mid-IR optical phased array (OPA) structure which eliminates the wafer bonding process to achieve highly efficient surface emitting optical beam steering in two dimensions is disclosed. Since solar energy is about 15-20 times smaller than that at 1.55 um, mid-IR is more favorable for the atmospheric transmission due to lower solar radiance backgrounds. For the beam steering, thermo-optic phase shifting is used for azimuthal plane beam steering and laser wavelength tuning is used for elevation plane beam steering. The OPA structure disclosed comprises a wavelength- tunable a QCL, a 1×32 splitter, thermo-optic phase-shifters, and sub-wavelength grating emitters. The disclosed OPA provides a low-cost, low-loss, low-power consumption, robust, small footprint, apparatus that may be used with expendable UAV swarms. A LiDAR may be created by monolithically integrating a QCD with the apparatus. Other embodiments are described and claimed.Type: ApplicationFiled: November 9, 2020Publication date: February 2, 2023Applicant: Omega Optics, Inc.Inventors: Jong-Dug Shin, Ray T. Chen, Jason Midkiff
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Patent number: 11097246Abstract: Methods and systems for highly-sensitive label-free multiple analyte sensing, biosensing, and diagnostic assay are disclosed. The systems comprise an on-chip integrated two-dimensional photonic crystal sensor chip. The invention provides modulation methods, wavelength modulation and intensity modulation, to monitor the resonance mode shift of the photonic crystal microarray device and further provides methods and systems that enable detection and identification of multiple species to be performed simultaneously with one two-dimensional photonic crystal sensor chip device for high throughput chemical sensing, biosensing, and medical diagnostics. Other embodiments are described and claimed.Type: GrantFiled: March 6, 2020Date of Patent: August 24, 2021Assignee: Omega Optics, Inc.Inventors: Swapnajit Chakravarty, Yunbo Guo, Ray T Chen
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Publication number: 20200206711Abstract: Methods and systems for highly-sensitive label-free multiple analyte sensing, biosensing, and diagnostic assay are disclosed. The systems comprise an on-chip integrated two-dimensional photonic crystal sensor chip. The invention provides modulation methods, wavelength modulation and intensity modulation, to monitor the resonance mode shift of the photonic crystal microarray device and further provides methods and systems that enable detection and identification of multiple species to be performed simultaneously with one two-dimensional photonic crystal sensor chip device for high throughput chemical sensing, biosensing, and medical diagnostics. Other embodiments are described and claimed.Type: ApplicationFiled: March 6, 2020Publication date: July 2, 2020Applicant: Omega Optics, Inc.Inventors: Swapnajit Chakravarty, Yunbo Guo, Ray T. Chen
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Patent number: 10610846Abstract: Methods and systems for highly-sensitive label-free multiple analyte sensing, biosensing, and diagnostic assay are disclosed. The systems comprise an on-chip integrated two-dimensional photonic crystal sensor chip. The invention provides modulation methods, wavelength modulation and intensity modulation, to monitor the resonance mode shift of the photonic crystal microarray device and further provides methods and systems that enable detection and identification of multiple species to be performed simultaneously with one two-dimensional photonic crystal sensor chip device for high throughput chemical sensing, biosensing, and medical diagnostics. Other embodiments are described and claimed.Type: GrantFiled: June 18, 2014Date of Patent: April 7, 2020Assignee: Omega Optics, Inc.Inventors: Swapnajit Chakravarty, Yunbo Guo, Ray T. Chen
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Patent number: 10490906Abstract: Apparatuses for communication or sensing are disclosed, the apparatuses comprising a substrate; a bottom cladding disposed on the substrate; a device layer disposed on the bottom cladding, wherein the device layer comprises: two substantially parallel rails extending from an input side to an output side of the device layer and configured to form a slot between the two substantially parallel rails, wherein each of the two substantially parallel rails comprises an inner edge adjacent to the slot and an outer edge opposite the slot; and one or more teeth coupled to each of the two substantially parallel rails; and a top cladding disposed onto the device layer and bottom cladding; wherein the bottom cladding, the device layer, and the top cladding are configured to support at least one optical guided mode. Other embodiments are described and claimed.Type: GrantFiled: August 22, 2017Date of Patent: November 26, 2019Assignee: Omega Optics, Inc.Inventors: Xiaochuan Xu, Ray T. Chen
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Publication number: 20190067830Abstract: Apparatuses for communication or sensing are disclosed, the apparatuses comprising a substrate; a bottom cladding disposed on the substrate; a device layer disposed on the bottom cladding, wherein the device layer comprises: two substantially parallel rails extending from an input side to an output side of the device layer and configured to form a slot between the two substantially parallel rails, wherein each of the two substantially parallel rails comprises an inner edge adjacent to the slot and an outer edge opposite the slot; and one or more teeth coupled to each of the two substantially parallel rails; and a top cladding disposed onto the device layer and bottom cladding; wherein the bottom cladding, the device layer, and the top cladding are configured to support at least one optical guided mode. Other embodiments are described and claimed.Type: ApplicationFiled: August 22, 2017Publication date: February 28, 2019Applicant: Omega Optics, Inc.Inventors: Xiaochuan Xu, Ray T. Chen
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Patent number: 10215918Abstract: An optical system is disclosed. The optical system comprising: a substrate; and a subwavelength photonic crystal waveguide atop the substrate, wherein the subwavelength photonic crystal waveguide comprises a periodic one or two-dimensional array of two or more interleaved dielectric pillars; wherein the periodicity of the one or two-dimensional array is constant, a combination of two or more periods, or random; wherein the one or two-dimensional array is substantially linear or curved; wherein each of the pillars of the one or two-dimensional array is at least one of a triangular prism, a trapezoidal prism, an elliptic cylinder, a cylinder, a tube, a frustum, a pyramid, a trapezoidal prism, and an asymmetric frustum; and wherein each of the pillars of the one or two-dimensional array comprises a solid, liquid, and/or gas. Other embodiments are described and claimed.Type: GrantFiled: September 30, 2016Date of Patent: February 26, 2019Assignee: Omega Optics, Inc.Inventors: Xiaochuan Xu, Ray T. Chen
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Publication number: 20170146738Abstract: An optical system is disclosed. The optical system comprising: a substrate; and a subwavelength photonic crystal waveguide atop the substrate, wherein the subwavelength photonic crystal waveguide comprises a periodic one or two-dimensional array of two or more interleaved dielectric pillars; wherein the periodicity of the one or two-dimensional array is constant, a combination of two or more periods, or random; wherein the one or two-dimensional array is substantially linear or curved; wherein each of the pillars of the one or two-dimensional array is at least one of a triangular prism, a trapezoidal prism, an elliptic cylinder, a cylinder, a tube, a frustum, a pyramid, a trapezoidal prism, and an asymmetric frustum; and wherein each of the pillars of the one or two-dimensional array comprises a solid, liquid, and/or gas. Other embodiments are described and claimed.Type: ApplicationFiled: September 30, 2016Publication date: May 25, 2017Applicant: Omega Optics, Inc.Inventors: Xiaochuan Xu, Ray T. Chen
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Patent number: 9579621Abstract: Methods and systems for label-free multiple analyte sensing, biosensing and diagnostic assay chips consisting of an array of photonic crystal microcavities along a single photonic crystal waveguide are disclosed. The invention comprises an on-chip integrated microarray device that enables detection and identification of multiple species to be performed simultaneously using optical techniques leading to a high throughput device for chemical sensing, biosensing and medical diagnostics. Other embodiments are described and claimed.Type: GrantFiled: November 26, 2013Date of Patent: February 28, 2017Assignee: Omega Optics, Inc.Inventors: Swapnajit Chakravarty, Ray T. Chen
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Patent number: 9563016Abstract: A method for reducing loss in a subwavelength photonic crystal waveguide bend is disclosed. The method comprising: forming the subwavelength photonic crystal waveguide bend with a series of trapezoidal shaped dielectric pillars centered about a bend radius; wherein each of the trapezoidal shaped dielectric pillars comprise a top width, a bottom width, and a trapezoid height; wherein the length of the bottom width is greater than the length of the top width; and wherein the bottom width is closer to the center of the bend radius of the subwavelength photonic crystal waveguide bend than the top width. Other embodiments are described and claimed.Type: GrantFiled: November 24, 2015Date of Patent: February 7, 2017Assignee: Omega Optics, Inc.Inventors: Xiaochuan Xu, Ray T. Chen
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Patent number: 9548543Abstract: A method for fabricating an M×N, P-bit phased-array antenna on a flexible substrate is disclosed. The method comprising ink jet printing and hardening alignment marks, antenna elements, transmission lines, switches, an RF coupler, and multilayer interconnections onto the flexible substrate. The substrate of the M×N, P-bit phased-array antenna may comprise an integrated control circuit of printed electronic components such as, photovoltaic cells, batteries, resistors, capacitors, etc. Other embodiments are described and claimed.Type: GrantFiled: January 7, 2015Date of Patent: January 17, 2017Assignee: Omega Optics, Inc.Inventors: Harish Subbaraman, Xiaochuan Xu, Yihong Chen, Ray T. Chen
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Publication number: 20160197411Abstract: A method for fabricating an M×N, P-bit phased-array antenna on a flexible substrate is disclosed. The method comprising ink jet printing and hardening alignment marks, antenna elements, transmission lines, switches, an RF coupler, and multilayer interconnections onto the flexible substrate. The substrate of the M×N, P-bit phased-array antenna may comprise an integrated control circuit of printed electronic components such as, photovoltaic cells, batteries, resistors, capacitors, etc. Other embodiments are described and claimed.Type: ApplicationFiled: January 7, 2015Publication date: July 7, 2016Applicant: Omega Optics, Inc.Inventors: Harish Subbaraman, Xiaochuan Xu, Yihong Chen, Ray T. Chen
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Patent number: 9195005Abstract: A fully additive method for forming optical waveguides and devices, such as thermo-optic polymer switches and electro-optic polymer modulators, is disclosed. A first polymer material of refractive index N1 is coated onto a suitable substrate to form a first cladding layer. The first cladding is then selectively patterned using a mold to form an impression of the waveguide core into the first cladding layer. Next, a core layer is formed by ink-jet printing onto the imprinted first cladding layer with a core material of refractive index N2 (N2>N1). The core layer is subsequently coated by ink-jet printing with a second polymer material of refractive index N3 (N3<N2) to form a second cladding, resulting in an optical waveguide. An electrode may be ink-jet printed before coating the first cladding material or after coating the second cladding material, or both before and after coating, in order to form active photonic devices.Type: GrantFiled: October 1, 2013Date of Patent: November 24, 2015Assignee: Omega Optics, Inc.Inventors: Harish Subbaraman, Ray T. Chen
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Patent number: 9164026Abstract: Systems and methods for chip-integrated label-free detection and absorption spectroscopy with high throughput, sensitivity, and specificity are disclosed. The invention comprises packaged chips for multiplexing photonic crystal microcavity waveguide and photonic crystal slot waveguide devices. The packaged chips comprise crossing waveguides to prevent leakage of fluids from the microfluidic channels from the trenches or voids around the light guiding waveguides. Other embodiments are described and claimed.Type: GrantFiled: January 27, 2014Date of Patent: October 20, 2015Assignee: Omega Optics, Inc.Inventors: Swapnajit Chakravarty, Amir Hosseini, Ray T. Chen
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Patent number: 9157850Abstract: Methods and systems for a label-free on-chip optical absorption spectrometer consisting of a photonic crystal slot waveguide are disclosed. The invention comprises an on-chip integrated optical absorption spectroscopy device that combines the slow light effect in photonic crystal waveguide and optical field enhancement in a slot waveguide and enables detection and identification of multiple analytes to be performed simultaneously using optical absorption techniques leading to a device for chemical and biological sensing, trace detection, and identification via unique analyte absorption spectral signatures. Other embodiments are described and claimed.Type: GrantFiled: November 26, 2013Date of Patent: October 13, 2015Assignee: Omega Optics, Inc.Inventors: Swapnajit Chakravarty, Ray T. Chen
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Patent number: 9063135Abstract: Systems and methods for chip-integrated label-free detection and absorption spectroscopy with high throughput, sensitivity, and specificity are disclosed. The invention comprises packaged chips for multiplexing photonic crystal waveguide and photonic crystal slot waveguide devices. Other embodiments are described and claimed.Type: GrantFiled: January 24, 2014Date of Patent: June 23, 2015Assignee: Omega Optics, Inc.Inventors: Swapnajit Chakravarty, Amir Hosseini, Ray T. Chen
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Publication number: 20150104562Abstract: A fully additive method for forming multilayer electrical interconnects for printed electronic and/or optoelectronic devices is disclosed. Electrical interconnects are fabricated by directly ink-jet printing a dielectric material with selective interconnection holes, and then ink jet printing conductive patterns and filling the interconnection holes with conductive material to form multilayer interconnects. A method for manufacturing a multilayer printed electronic system utilizing the invention is also disclosed. Other embodiments are described and claimed.Type: ApplicationFiled: October 10, 2013Publication date: April 16, 2015Applicant: OMEGA OPTICS, INC.Inventors: Harish Subbaraman, Ray T. Chen
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Publication number: 20150093515Abstract: A fully additive method for forming optical waveguides and devices, such as thermo-optic polymer switches and electro-optic polymer modulators, is disclosed. A first polymer material of refractive index N1 is coated onto a suitable substrate to form a first cladding layer. The first cladding is then selectively patterned using a mold to form an impression of the waveguide core into the first cladding layer. Next, a core layer is formed by ink-jet printing onto the imprinted first cladding layer with a core material of refractive index N2 (N2>N1). The core layer is subsequently coated by ink jet printing with a second polymer material of refractive index N3 (N3<N2) to form a second cladding, resulting in an optical waveguide. An electrode may be ink jet printed before coating the first cladding material or after coating the second cladding material, or both before and after coating, in order to form active photonic devices.Type: ApplicationFiled: October 1, 2013Publication date: April 2, 2015Applicant: Omega Optics, Inc.Inventors: Harish Subbaraman, Ray T. Chen