Patents by Inventor Anjin LIU

Anjin LIU 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).

  • Optical sensor for detecting chemical, biochemical or biological substances
    Patent number: 9693715
    Abstract: An optical sensor for detecting chemical, biochemical or biological substances includes a laser and a semiconductor chip. The sensor includes at least one photodetector and at least one high-contrast grating that are monolithically integrated in the semiconductor chip. The high-contrast grating is configured to optically couple radiation emitted by the laser into the photodetector. The coupling behavior of the high-contrast grating depends on the optical properties of external substances that are brought near to or in contact with the high-contrast grating.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: July 4, 2017
    Assignee: Technische Universität Berlin
    Inventors: Anjin Liu, Werner Hofmann, Dieter Bimberg
  • OPTICAL SENSOR
    Publication number: 20160161331
    Abstract: An embodiment of the invention relates to an optical sensor for detecting chemical, biochemical or biological substances, the sensor comprising a laser and a semiconductor chip, wherein at least one photodetector and at least one high-contrast grating are monolithically integrated in said same chip, wherein the high-contrast grating is configured to optically couple radiation emitted by the laser into the photodetector, and wherein the coupling behaviour of said high-contrast grating depends on the optical properties of external substances that are brought near to or in contact with the high-contrast grating.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 9, 2016
    Applicant: TECHNISCHE UNIVERSITAT BERLIN
    Inventors: Anjin LIU, Werner HOFMANN, Dieter BIMBERG