Patents by Inventor Wenjian Wan

Wenjian Wan 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).

  • Terahertz spectrum measurement system and method for analyzing a terahertz spectrum of a substance
    Patent number: 11788956
    Abstract: The present application provides a terahertz spectrum measurement system and a method for analyzing a terahertz spectrum of a substance, wherein the terahertz spectrum measurement system comprises: two terahertz quantum cascade lasers with their emission ports arranged oppositely; and a vacuum hood arranged between the emission ports of two terahertz quantum cascade lasers. The terahertz spectrum measurement system and the method for analyzing a terahertz spectrum of a substance realize a separate terahertz dual frequency comb while retaining the advantages of the on-chip dual frequency comb system, which solves the problem that the on-chip dual frequency comb cannot directly measure the terahertz spectra of substances.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: October 17, 2023
    Assignee: Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
    Inventors: Hua Li, Ziping Li, Wenjian Wan, Juncheng Cao
  • Terahertz Spectrum Measurement System And Method For Analyzing A Terahertz Spectrum Of A Substance
    Publication number: 20220221400
    Abstract: The present application provides a terahertz spectrum measurement system and a method for analyzing a terahertz spectrum of a substance, wherein the terahertz spectrum measurement system comprises: two terahertz quantum cascade lasers with their emission ports arranged oppositely; and a vacuum hood arranged between the emission ports of two terahertz quantum cascade lasers. The terahertz spectrum measurement system and the method for analyzing a terahertz spectrum of a substance realize a separate terahertz dual frequency comb while retaining the advantages of the on-chip dual frequency comb system, which solves the problem that the on-chip dual frequency comb cannot directly measure the terahertz spectra of substances.
    Type: Application
    Filed: September 30, 2019
    Publication date: July 14, 2022
    Inventors: Hua Li, Ziping Li, Wenjian Wan, Juncheng Cao