Patents by Inventor Swapnajit Chakravarty

Swapnajit Chakravarty 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: 11841563
    Abstract: The present disclosure relates to electro-optic modulators that include caps for optical confinement. One example embodiment includes an electro-optic modulator. The electro-optic modulator includes a first cladding layer. The electro-optic modulator also includes a second cladding layer. In addition, the electro-optic modulator includes a first waveguide. The first waveguide is at least partially encapsulated between the first cladding layer and the second cladding layer. Further, the electro-optic modulator includes a thin-film lithium niobate layer adjacent to the second cladding layer. The thin-film lithium niobate layer is on an opposite side of the second cladding layer from the first waveguide. Additionally, the electro-optic modulator includes a first cap positioned on an opposite side of the thin-film lithium niobate layer from the second cladding layer. The first cap enhances optical confinement within the thin-film lithium niobate layer.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: December 12, 2023
    Assignee: IMEC USA NANOELECTRONICS DESIGN CENTER, Inc.
    Inventors: Swapnajit Chakravarty, Reza Safian
  • Publication number: 20220317483
    Abstract: The present disclosure relates to electro-optic modulators that include caps for optical confinement. One example embodiment includes an electro-optic modulator. The electro-optic modulator includes a first cladding layer. The electro-optic modulator also includes a second cladding layer. In addition, the electro-optic modulator includes a first waveguide. The first waveguide is at least partially encapsulated between the first cladding layer and the second cladding layer. Further, the electro-optic modulator includes a thin-film lithium niobate layer adjacent to the second cladding layer. The thin-film lithium niobate layer is on an opposite side of the second cladding layer from the first waveguide. Additionally, the electro-optic modulator includes a first cap positioned on an opposite side of the thin-film lithium niobate layer from the second cladding layer. The first cap enhances optical confinement within the thin-film lithium niobate layer.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 6, 2022
    Inventors: Swapnajit Chakravarty, Reza Safian
  • Patent number: 11097246
    Abstract: 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: Grant
    Filed: March 6, 2020
    Date of Patent: August 24, 2021
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Yunbo Guo, Ray T Chen
  • Publication number: 20200206711
    Abstract: 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: Application
    Filed: March 6, 2020
    Publication date: July 2, 2020
    Applicant: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Yunbo Guo, Ray T. Chen
  • Patent number: 10610846
    Abstract: 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: Grant
    Filed: June 18, 2014
    Date of Patent: April 7, 2020
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Yunbo Guo, Ray T. Chen
  • Patent number: 9579621
    Abstract: 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: Grant
    Filed: November 26, 2013
    Date of Patent: February 28, 2017
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Ray T. Chen
  • Patent number: 9164026
    Abstract: 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: Grant
    Filed: January 27, 2014
    Date of Patent: October 20, 2015
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Amir Hosseini, Ray T. Chen
  • Patent number: 9157850
    Abstract: 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: Grant
    Filed: November 26, 2013
    Date of Patent: October 13, 2015
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Ray T. Chen
  • Patent number: 9063135
    Abstract: 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: Grant
    Filed: January 24, 2014
    Date of Patent: June 23, 2015
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Amir Hosseini, Ray T. Chen
  • Publication number: 20150002346
    Abstract: Apparatuses comprising an integrated printed decorative image with a printed antenna structure and/or printed electronic circuits are disclosed. In one embodiment, the apparatus comprises a printed decorative image atop the layer of the printed antenna structure, wherein the printed antenna structure is substantially concealed by the printed decorative image. Other embodiments are described and claimed.
    Type: Application
    Filed: June 17, 2014
    Publication date: January 1, 2015
    Applicant: OMEGA OPTICS, INC.
    Inventors: Harish Subbaraman, Swapnajit Chakravarty, Yunbo Guo, Ray T. Chen
  • Publication number: 20140378328
    Abstract: 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: Application
    Filed: June 18, 2014
    Publication date: December 25, 2014
    Applicant: OMEGA OPTICS, INC.
    Inventors: Swapnajit Chakravarty, Yunbo Guo, Ray T. Chen
  • Publication number: 20140141999
    Abstract: 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: Application
    Filed: January 24, 2014
    Publication date: May 22, 2014
    Applicant: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Amir Hosseini, Ray T. Chen
  • Publication number: 20140140655
    Abstract: 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: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Amir Hosseini, Ray T. Chen
  • Publication number: 20140084147
    Abstract: 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: Application
    Filed: November 26, 2013
    Publication date: March 27, 2014
    Applicant: OMEGA OPTICS, INC.
    Inventors: Swapnajit Chakravarty, Ray T. Chen
  • Publication number: 20140080740
    Abstract: 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: Application
    Filed: November 26, 2013
    Publication date: March 20, 2014
    Applicant: OMEGA OPTICS, INC.
    Inventors: Swapnajit Chakravarty, Ray T. Chen
  • Patent number: 8636955
    Abstract: 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: Grant
    Filed: September 9, 2012
    Date of Patent: January 28, 2014
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Ray T. Chen, Amir Hosseini
  • Patent number: 8623284
    Abstract: 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: Grant
    Filed: September 9, 2012
    Date of Patent: January 7, 2014
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Ray T. Chen
  • Patent number: 8617471
    Abstract: 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: Grant
    Filed: September 9, 2012
    Date of Patent: December 31, 2013
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Ray T. Chen
  • Patent number: 8585974
    Abstract: 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: Grant
    Filed: September 9, 2012
    Date of Patent: November 19, 2013
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Ray T. Chen
  • Patent number: 8580200
    Abstract: 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: Grant
    Filed: September 9, 2012
    Date of Patent: November 12, 2013
    Assignee: Omega Optics, Inc.
    Inventors: Swapnajit Chakravarty, Ray T. Chen