Patents by Inventor Ehsan EFTEKHARI

Ehsan EFTEKHARI 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).

  • Luminescent photonic structure, a method of fabricating a luminescent photonic structure, and a method of sensing a chemical substance
    Patent number: 10718902
    Abstract: A luminescent photonic structure that comprises a luminescent material that when excited by an excitation light having a wavelength within an excitation wavelength spectrum of the luminescent material emits luminescent light having a luminescence wavelength spectrum. The luminescent photonic structure comprises a photonic crystal disposed between two other photonic crystals. The photonic crystal has a photonic lattice period within one of the luminescence wavelength spectrum and the excitation wavelength spectrum. The two other photonic crystals each have a photonic lattice period within the other of the luminescence wavelength spectrum and the excitation wavelength spectrum for reflecting one of excitation light and luminescent light propagating within the photonic crystal.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: July 21, 2020
    Assignee: GRIFFITH UNIVERSITY
    Inventors: Qin Li, Ehsan Eftekhari, Dave Kielpinski
  • LUMINESCENT PHOTONIC STRUCTURE, A METHOD OF FABRICATING A LUMINESCENT PHOTONIC STRUCTURE, AND A METHOD OF SENSING A CHEMICAL SUBSTANCE
    Publication number: 20180164502
    Abstract: A luminescent photonic structure that comprises a luminescent material that when excited by an excitation light having a wavelength within an excitation wavelength spectrum of the luminescent material emits luminescent light having a luminescence wavelength spectrum. The luminescent photonic structure comprises a photonic crystal disposed between two other photonic crystals. The photonic crystal has a photonic lattice period within one of the luminescence wavelength spectrum and the excitation wavelength spectrum. The two other photonic crystals each have a photonic lattice period within the other of the luminescence wavelength spectrum and the excitation wavelength spectrum for reflecting one of excitation light and luminescent light propagating within the photonic crystal.
    Type: Application
    Filed: June 14, 2016
    Publication date: June 14, 2018
    Inventors: Li QIN, Ehsan EFTEKHARI, Dave KIELPINSKI