Patents by Inventor Hyounghan KWON

Hyounghan KWON 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).

  • TUNABLE OPTICAL METASURFACES BASED ON SLOT MODE RESONANCES
    Publication number: 20230314898
    Abstract: Tunable optical structures operating based on slot resonances can be produced with periodic structures where each period includes at least two parallel nanobars with a slot therebetween. The slots include periodic notches served to generate resonances, the wavelength and the quality-factor of which can be controlled by applying bias voltages to nanobars thus generating mechanical movement of such nanobars. Phase modulators with close to unity reflection and beam steering devices can also be made based on these concepts.
    Type: Application
    Filed: March 23, 2023
    Publication date: October 5, 2023
    Inventors: Tianzhe ZHENG, Andrei FARAON, Hyounghan KWON, Yiran GU, Bilgehan BASPINAR, Phillippe MJ PEARSON
  • Metasurface imager for quantitative phase gradient detection
    Patent number: 11385450
    Abstract: Quantitative phase gradient microscopes (QPGM) using metasurface layers including birefringent lenses are disclosed. The birefringent lenses are manufactured by patterning nanoposts on two different transparent substrates or on opposite sides of the same transparent substrate. Methods to generate phase gradient images (PGI) of objects using the described devices are also disclosed.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: July 12, 2022
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Hyounghan Kwon, Ehsan Arbabi, Andrei Faraon
  • METASURFACE IMAGER FOR QUANTITATIVE PHASE GRADIENT DETECTION
    Publication number: 20200348500
    Abstract: Quantitative phase gradient microscopes (QPGM) using metasurface layers including birefringent lenses are disclosed. The birefringent lenses are manufactured by patterning nanoposts on two different transparent substrates or on opposite sides of the same transparent substrate. Methods to generate phase gradient images (PGI) of objects using the described devices are also disclosed.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 5, 2020
    Inventors: Hyounghan KWON, Ehsan ARBABI, Andrei FARAON