Patents by Inventor Ravinder Jain

Ravinder Jain 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: 11275089
    Abstract: A method of making free-standing ALD-coated plasmonic nanoparticles. The method comprises providing a plurality of semiconductor quantum dots. One or more conformal layers of dielectric material are deposited over the quantum dots to form dielectric-coated quantum dots. A conformal metallic nanoshell is deposited over the dielectric-coated quantum dots to form plasmonic nanoparticles. At least one layer chosen from i) the conformal layers of dielectric material and ii) the conformal metallic nanoshell is deposited using a vapor phase atomic layer deposition (ALD) process. Plasmonic nanoparticles and systems employing the nanoparticles are also disclosed.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: March 15, 2022
    Inventors: Ravinder Jain, Abhaya K. Datye, Ying-Bing Jiang
  • Publication number: 20190128894
    Abstract: A method of making free-standing ALD-coated plasmonic nanoparticles. The method comprises providing a plurality of semiconductor quantum dots. One or more conformal layers of dielectric material are deposited over the quantum dots to form dielectric-coated quantum dots. A conformal metallic nanoshell is deposted over the dielectric-coated quantum dots to form plasmonic nanoparticles. At least one layer chosen from i) the conformal layers of dielectric material and ii) the conformal metallic nanoshell is deposited using a vapor phase atomic layer deposition (ALD) process. Plasmonic nanoparticles and systems employing the nanoparticles are also disclosed.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 2, 2019
    Inventors: Ravinder Jain, Abhaya K. Datye, Ying-Bing Jiang
  • Patent number: 9594211
    Abstract: The present invention provides an optical fiber and method of making the same. The optical fiber includes a body for transmitting light. The body has an anisotropic refractive index wherein the anisotropic refractive index offsets changes in the refractive index of the fiber caused by bending the fiber. The fiber body may further include a core and cladding.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: March 14, 2017
    Assignee: STC. UNM
    Inventor: Ravinder Jain
  • Patent number: 9482608
    Abstract: The present invention concerns an optical molecular sensing device and related method. The optical molecular sensing device has an optical resonator adapted to be connected to an excitation source. The excitation source may be a laser operating at a 2.7-2.8 um spectral range. The optical molecular sensing device has an emission spectrum comprised of a plurality wavelengths. Also included are a detection unit and a RF frequency counter to detect at least one RF beat note resulting from detecting the emission spectrum of the optical resonator. A change in frequency of the RF beat note indicates the presence of a target molecule.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: November 1, 2016
    Assignee: STC.UNM
    Inventors: Ravinder Jain, Mani Hossein-Zadeh
  • Patent number: 9267889
    Abstract: Apparatus, systems, and methods using multi-shelled nanostructures can be used in a variety of applications. In various embodiments, a multi-shelled nanostructure can include one or more light-absorbing and light-emitting cores enclosed by a number of nanoshells. For a multi-shelled nanostructure having multiple conductive nanoshells, the nanoshells are separated from each other by a dielectric. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: February 23, 2016
    Assignee: STC.UNM
    Inventors: Mike Klopfer, Ravinder Jain
  • Patent number: 8379285
    Abstract: Apparatus, systems, and methods to construct and operate a radio frequency self-regenerated locked optical oscillator can be used in a variety of applications. Stable synchronization of an optical oscillator can be achieved by driving an amplitude modulator with a radio frequency (RF) signal regenerated from the cavity of the optical oscillator. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: February 19, 2013
    Assignee: STC.UNM
    Inventors: Jean-Claude Diels, Alexandre B. Braga, Ravinder Jain, Ronald R. Kay
  • Publication number: 20050006528
    Abstract: An electromechanical flight deck door locking system capable of functioning to keep a cockpit door locked in the event of an interruption in electrical power to the system. The flight deck door locking system includes a locking assembly including a locking component and a manually graspable handle for displacing the locking component. Further, the locking system includes an electronic control panel configured to receive data from an individual seeking access to the cockpit and for electrically locking and unlocking the locking assembly. The locking system also includes a mechanical locking assembly, such as a key lock, whereby a user can use a key to lock and unlock the door if electrical power to the system is unavailable.
    Type: Application
    Filed: August 5, 2004
    Publication date: January 13, 2005
    Inventors: Sami Movsesian, Binh Truong, Stephen Wiles, Ravinder Jain, Dinanath Gharmalkar, Danny Valdez, Stephen Kelekian, Gary Bartz
  • Patent number: 6534248
    Abstract: The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or amplitude of a propagating wave in the waveguide. Particular device structures and methods of manufacturing are described herein.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: March 18, 2003
    Assignee: Science and Technology Corporation @ UNM
    Inventors: Ravinder Jain, Balaji Srinivasan
  • Patent number: 6510276
    Abstract: An improved highly doped waveguide is provided which comprises a waveguide having a dopant disposed therein, the dopant having a concentration of between 100 and 500,000 ppm, and wherein the concentration of the dopant enhances cross-relaxation between two elements of the dopant.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: January 21, 2003
    Assignee: Science & Technology Corporation @ UNM
    Inventors: Ravinder Jain, Balaji Srinivasan, Erik Poppe
  • Patent number: 6510167
    Abstract: An improved method and apparatus for mode-locking a fiber laser at a pre-selected frequency wherein a doped fiber segment contains a narrowband FBG and an electro-optically tuned FBG, thereby making obsolete the need for an EOM to modulate the laser's wavelength. The present invention also provides a method and apparatus for mode-locking a fiber laser at a variable frequencies wherein a doped fiber segment contains two electro-optically tuned FBG's. The electro-optically tuned FBG may be fabricated by a thermal poling process.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: January 21, 2003
    Assignee: Science & Technology Corporation @UNM
    Inventors: Ravinder Jain, Balaji Srinivasan
  • Publication number: 20020119400
    Abstract: The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or amplitude of a propagating wave in the waveguide. Particular device structures and methods of manufacturing are described herein.
    Type: Application
    Filed: January 24, 2001
    Publication date: August 29, 2002
    Inventors: Ravinder Jain, Balaji Srinivasan
  • Patent number: 6221565
    Abstract: The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or amplitude of a propagating wave in the waveguide. Particular device structures and methods of manufacturing are described herein.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: April 24, 2001
    Assignee: University of New Mexico
    Inventors: Ravinder Jain, Balaji Srinivasan
  • Patent number: RE41204
    Abstract: The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or amplitude of a propagating wave in the waveguide. Particular device structures and methods of manufacturing are described herein.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: April 6, 2010
    Inventors: Ravinder Jain, Balaji Srinivasan
  • Patent number: RE41613
    Abstract: The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or amplitude of a propagating wave in the waveguide. Particular device structures and methods of manufacturing are described herein.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: August 31, 2010
    Inventors: Ravinder Jain, Balaji Srinivasan
  • Patent number: RE41642
    Abstract: Continuously tunable and precisely wavelength-switchable fiber lasers combine fiber Bragg gratings and the transmissive filtering properties of high finesse fiber Fabry-Perot filters. This laser arrangement adapts to multiple wavelength ranges based on the selections of fiber Bragg grating and gain medium and their arrangement to create a wavelength-modulatable and simultaneously rapidly wavelength-switchable narrow linewidth all-fiber laser design. This laser arrangement further results in narrow-linewidth outputs with fast switching speeds between the selected wavelengths.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: September 7, 2010
    Inventors: Nathaniel C. Libatique, Ravinder Jain
  • Patent number: RE41748
    Abstract: The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or amplitude of a propagating wave in the waveguide. Particular device structures and methods of manufacturing are described herein.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: September 21, 2010
    Inventors: Ravinder Jain, Balaji Srinivasan