Patents by Inventor Kar Wei Ng

Kar Wei Ng 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).

  • Nanopillar optical resonator
    Patent number: 9093818
    Abstract: Monolithically integrated optical resonators are disclosed. An optical resonator may be a nanopillar optical resonator that is formed directly on a substrate and promotes a helically-propagating cavity mode. The helically-propagating cavity mode may result in significant reflection or, total internal reflection at an interface of the nanopillar optical resonator and the substrate even if refractive indices of the nanopillar optical resonator and the substrate are the same or similar. As a result, strong optical feedback, and thus strong resonance, may be provided in the nanopillar optical resonator.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: July 28, 2015
    Assignee: The Regents of the University of California
    Inventors: Connie Chang-Hasnain, Forrest Sedgwick, Roger Chen, Thai-Truong Du Tran, Kar Wei Ng, Wai Son Ko
  • NANOPILLAR OPTICAL RESONATOR
    Publication number: 20140353712
    Abstract: Embodiments of a monolithically integrated optical resonator are disclosed. In one embodiment, the optical resonator is a nanopillar optical resonator that is formed directly on a substrate and promotes a helically-propagating cavity mode. The helically-propagating cavity mode results in significant reflection or, in some embodiments, total internal reflection at an interface of the nanopillar optical resonator and the substrate even if refractive indices of the nanopillar optical resonator and the substrate are the same or similar. As a result, strong optical feedback, and thus strong resonance, is provided in the nanopillar optical resonator.
    Type: Application
    Filed: July 15, 2011
    Publication date: December 4, 2014
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Connie Chang-Hasnain, Forrest Sedgwick, Roger Chen, Thai-Truong Du Tran, Kar Wei Ng, Wai Son Ko