Patents by Inventor Marc JANKOWSKI

Marc JANKOWSKI 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).

  • Ultra-broadband mid-infrared generation in dispersion-engineered thin-film lithium niobate
    Patent number: 12386237
    Abstract: In some embodiments, a device for generating mid-infrared radiation is provided. The device may include a thin film quadratic nonlinear waveguide formed on a mid-infrared transparent cladding by a thin film material of a predetermined film thickness, the waveguide having a predetermined etch depth and a predetermined top width. At least one of the predetermined film thickness, the predetermined etch depth, and the predetermined top width may be tuned for the device to generate a coherent idler wave as a mid-infrared radiation from a fixed pump wave and a tunable signal wave.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: August 12, 2025
    Assignees: NTT RESEARCH, INC., THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Jatadhari Mishra, Marc Jankowski, Alexander Y. Hwang, Hubert S. Stokowski, Timothy P. McKenna, Amir H Safavi-Naeini, Martin M. Fejer
  • ULTRA-BROADBAND MID-INFRARED GENERATION IN DISPERSION-ENGINEERED THIN-FILM LITHIUM NIOBATE
    Publication number: 20230367177
    Abstract: In some embodiments, a device for generating mid-infrared radiation is provided. The device may include a thin film quadratic nonlinear waveguide formed on a mid-infrared transparent cladding by a thin film material of a predetermined film thickness, the waveguide having a predetermined etch depth and a predetermined top width. At least one of the predetermined film thickness, the predetermined etch depth, and the predetermined top width may be tuned for the device to generate a coherent idler wave as a mid-infrared radiation from a fixed pump wave and a tunable signal wave.
    Type: Application
    Filed: May 12, 2023
    Publication date: November 16, 2023
    Applicants: NTT RESEARCH, INC., THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Jatadhari MISHRA, Marc JANKOWSKI, Alexander Y. HWANG, Hubert S. STOKOWSKI, Timothy P. McKENNA, Amir H. SAFAVI-NAEINI, Martin M. FEJER