Patents by Inventor Kyeong-Hwa Yoo

Kyeong-Hwa Yoo 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).

  • Surface plasmon optic devices and radiating surface plasmon sources for photolithography
    Patent number: 7359598
    Abstract: Disclosed is a surface plasmon optic device that has a periodic array of apertures in a dielectric substrate and a metal film formed on the dielectric substrate and emits light from metal-air interface. The surface plasmon optic device includes a surface plasmon generating apparatus, a surface plasmon detecting apparatus, a surface plasmon controlling apparatus, an etching apparatus, etc. if a metal diffraction grating is disposed on the metal film having a well-defined interface, propagation of the surface plasmon can be efficiently reflected, divided and controlled. Further, radiating surface plasmon having a half period of a lattice constant formed at air-metal (1, 0) can be preserved at a distance of at least a few micron.
    Type: Grant
    Filed: November 10, 2001
    Date of Patent: April 15, 2008
    Assignee: Seoul National University Industry Foundation
    Inventors: Dai-Sik Kim, Sung-Chul Hohng, Christoph Lienau, Victor Malyarchuck, Jong-Wan Park, Yeo-Chan Yoon, Han-Youl Ryu, Kyeong-Hwa Yoo
  • Surface plasmon optic devices and radiating surface plasmon sources for photolithography
    Publication number: 20050062973
    Abstract: Disclosed is a surface plasmon optic device that has a periodic array of apertures in a dielectric substrate and a metal film formed on the dielectric substrate and emits light from metal-air interface. The surface plasmon optic device includes a surface plasmon generating apparatus, a surface plasmon detecting apparatus, a surface plasmon controlling apparatus, an etching apparatus, etc. if a metal diffraction grating is disposed on the metal film having a well-defined interface, propagation of the surface plasmon can be efficiently reflected, divided and controlled. Further, radiating surface plasmon having a half period of a lattice constant formed at air-metal (1, 0) can be preserved at a distance of at least a few micron.
    Type: Application
    Filed: November 10, 2001
    Publication date: March 24, 2005
    Inventors: Dai-Sik Kim, Sung-Chul Hohng, Christoph Lienau, Victor Malyarchuck, Jong-Wan Park, Yeo-Chan Yoon, Han-Youl Ryu, Kyeong-Hwa Yoo