Patents by Inventor Marcel Pruessner

Marcel Pruessner 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).

  • Methods and apparatuses for measuring optical radiation
    Patent number: 11073421
    Abstract: Optical detectors and methods of forming them are provided. The detector includes: a controller, pump and probe laser generators that generate modulated pump laser and probe lasers, respectively, a microring cavity that receives the lasers, a microbridge, and a photodetector. The microring cavity includes covered and exposed portions. The microbridge is suspended above the exposed portion and interacts with an evanescent optical field. The wavelength and modulated power of the pump laser are controlled to generate the evanescent optical field that excites the microbridge to resonance. The microbridge absorbs optical radiation which changes the resonance frequency proportionately. The probe laser is modulated in proportion to a vibration amplitude of the microbridge to form a modulated probe laser which is provided to the photodetector.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 27, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Marcel Pruessner, Doewon Park, Todd Stievater, Dmitry Kozak, William Rabinovich
  • METHODS AND APPARATUSES FOR MEASURING OPTICAL RADIATION
    Publication number: 20200049549
    Abstract: Optical detectors and methods of forming them are provided. The detector includes: a controller, pump and probe laser generators that generate modulated pump laser and probe lasers, respectively, a microring cavity that receives the lasers, a microbridge, and a photodetector. The microring cavity includes covered and exposed portions. The microbridge is suspended above the exposed portion and interacts with an evanescent optical field. The wavelength and modulated power of the pump laser are controlled to generate the evanescent optical field that excites the microbridge to resonance. The microbridge absorbs optical radiation which changes the resonance frequency proportionately. The probe laser is modulated in proportion to a vibration amplitude of the microbridge to form a modulated probe laser which is provided to the photodetector.
    Type: Application
    Filed: August 9, 2019
    Publication date: February 13, 2020
    Inventors: Marcel Pruessner, Doewon Park, Todd Stievater, Dmitry Kozak, William Rabinovich