Patents by Inventor Raphael St-Gelais

Raphael St-Gelais 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).

  • Efficient mid-infrared sources
    Patent number: 10438790
    Abstract: A emitter is formed of a thin-film membrane disposed within a cavity so as to provide a output beam. The emitter may be configured to obtain broadband light. The emitter may enhance the emissivity of light over a broad spectral band.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: October 8, 2019
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Michal Lipson, Gaurang R Bhatt, Raphael St-Gelais, Avik Dutt, Steven Miller, Felippe A. S. Barbosa
  • Efficient Mid-Infrared Sources
    Publication number: 20180323054
    Abstract: A emitter is formed of a thin-film membrane disposed within a cavity so as to provide a output beam. The emitter may be configured to obtain broadband light. The emitter may enhance the emissivity of light over a broad spectral band.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 8, 2018
    Inventors: Michal Lipson, Gaurang R Bhatt, Raphael St-Gelais, Avik Dutt, Steven Miller, Felippe A.S. Barbosa
  • MEMS tunable silicon fabry-perot cavity and applications thereof
    Patent number: 8174698
    Abstract: A method for fabricating a tunable Fabry-Perot cavity comprises etching a substrate to form two reflectors separated by an air gap and an electrostatic mechanism. One of the two reflectors is mobile and connected to the electrostatic mechanism. Therefore, operation of the electrostatic mechanism moves the mobile reflector to change the thickness of the air gap and thereby tune the Fabry-Perot cavity. A tunable Fabry-Perot cavity fabricated with the above method comprises: a substrate; two reflectors formed in the substrate and separated by an air gap having a thickness, wherein one of the two reflectors is mobile; and an electrostatic mechanism formed in the substrate and connected to the mobile reflector. The mobile reflector connected to the electrostatic mechanism is moved upon operation of the electrostatic mechanism to change the thickness of the air gap and thereby tune the Fabry-Perot cavity.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: May 8, 2012
    Assignee: Corporation de l'Ecole Polytechnique de Montréal
    Inventors: Yves-Alain Peter, Jonathan Masson, Raphaël St-Gelais
  • MEMS tunable silicon fabry-perot cavity and applications thereof
    Publication number: 20090153844
    Abstract: A method for fabricating a tunable Fabry-Perot cavity comprises etching a substrate to form two reflectors separated by an air gap and an electrostatic mechanism. One of the two reflectors is mobile and connected to the electrostatic mechanism. Therefore, operation of the electrostatic mechanism moves the mobile reflector to change the thickness of the air gap and thereby tune the Fabry-Perot cavity. A tunable Fabry-Perot cavity fabricated with the above method comprises: a substrate; two reflectors formed in the substrate and separated by an air gap having a thickness, wherein one of the two reflectors is mobile; and an electrostatic mechanism formed in the substrate and connected to the mobile reflector. The mobile reflector connected to the electrostatic mechanism is moved upon operation of the electrostatic mechanism to change the thickness of the air gap and thereby tune the Fabry-Perot cavity.
    Type: Application
    Filed: August 11, 2008
    Publication date: June 18, 2009
    Inventors: Yves-Alain Peter, Jonathan Masson, Raphael St-Gelais