Patents by Inventor Shouyuan Shi

Shouyuan Shi 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).

  • Publication number: 20110170820
    Abstract: Electro-optic modulators are disclosed. An electro-optic modulator comprises an electro-optic polymer layer, semiconductor layers, ferroelectric material layers, and electrodes. The semiconductor layers are positioned on each surface of the electro-optic polymer layer. The refractive index of the semiconductor layers in the optical and RF domains is higher than the refractive index of the electro-optic polymer layer in the optical and RF domains. The ferroelectric material layers are positioned on each semiconductor layer opposite the electro-optic polymer layer. The refractive index of the ferroelectric material layers in the RF domain is higher than the refractive indices of both the electro-optic polymer layer and the semiconductor layers in the RF domain. The refractive index of the ferroelectric material layers in the optical domain is lower than the refractive index of the semiconductor layer in the optical domain.
    Type: Application
    Filed: November 4, 2010
    Publication date: July 14, 2011
    Applicant: University of Delaware
    Inventors: DENNIS PRATHER, Shouyuan Shi
  • Patent number: 7718953
    Abstract: Described herein are electromagnetic traps or tweezers. Desired results are achieved by combining two recently developed techniques, 3D negative refraction flat lenses (3DNRFLs) and optical tweezers. The very unique advantages of using 3DNRFLs for electromagnetic traps have been demonstrated. Super-resolution and short focal distance of the flat lens result in a highly focused and strongly convergent beam, which is a key requirement for a stable and accurate electromagnetic trap. The translation symmetry of 3DNRFL provides translation-invariance for imaging, which allows an electromagnetic trap to be translated without moving the lens, and permits a trap array by using multiple sources with a single lens.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: May 18, 2010
    Assignee: University of Delaware
    Inventors: Dennis W. Prather, Zhaolin Lu, Janusz Murakowski, Shouyuan Shi, Garrett Schneider
  • Publication number: 20070285803
    Abstract: Described herein are electromagnetic traps or tweezers. Desired results are achieved by combining two recently developed techniques, 3D negative refraction flat lenses (3DNRFLs) and optical tweezers. The very unique advantages of using 3DNRFLs for electromagnetic traps have been demonstrated. Super-resolution and short focal distance of the flat lens result in a highly focused and strongly convergent beam, which is a key requirement for a stable and accurate electromagnetic trap. The translation symmetry of 3DNRFL provides translation-invariance for imaging, which allows an electromagnetic trap to be translated without moving the lens, and permits a trap array by using multiple sources with a single lens.
    Type: Application
    Filed: April 12, 2007
    Publication date: December 13, 2007
    Inventors: Dennis Prather, Zhaolin Lu, Janusz Murakowski, Shouyuan Shi, Garrett Schneider
  • Publication number: 20030048993
    Abstract: In an optical coupling system, an optical coupler having a dielectric mirror or Gaussian beam mirror is used to efficiently couple optical signals to photonic crystal waveguides. Dielectric mirrors offer the advantage of optical coupling between dielectric waveguides and single mode photonic crystal waveguides. Various types of optical couplers may be implemented with or without a dielectric waveguide in the system.
    Type: Application
    Filed: May 6, 2002
    Publication date: March 13, 2003
    Inventors: Shouyuan Shi, Caihua Chen, Ahmed Sharkawy, Dennis W. Prather