Patents by Inventor Maria Tamargo

Maria Tamargo 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).

  • Quantum well infrared photodetectors using II-VI material systems
    Patent number: 9698286
    Abstract: A quantum well infrared photodetector (QWIP) and method of making is disclosed. The QWIP includes a plurality of epi-layers formed into multiple periods of quantum wells, each of the quantum wells being separated by a barrier, the quantum wells and barriers being formed of II-VI semiconductor materials. A multiple wavelength QWIP is also disclosed and includes a plurality of QWIPs stacked onto a single epitaxial structure, in which the different QWIPs are designed to respond at different wavelengths. A dual wavelength QWIP is also disclosed and includes two QWIPs stacked onto a single epitaxial structure, in which one QWIP is designed to respond at 10 ?m and the other at 3-5 ?m wavelengths.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: July 4, 2017
    Assignees: THE RESEARCH FOUNDATION OF THE CITY UNIVERSITY OF NEW YORK, THE TRUSTEES OF PRINCETON UNIVERSITY
    Inventors: Arvind Ravikumar, Claire Gmachl, Aidong Shen, Maria Tamargo
  • QUANTUM WELL INFRARED PHOTODETECTORS USING II-VI MATERIAL SYSTEMS
    Publication number: 20140231750
    Abstract: A quantum well infrared photodetector (QWIP) and method of making is disclosed. The QWIP includes a plurality of epi-layers formed into multiple periods of quantum wells, each of the quantum wells being separated by a barrier, the quantum wells and barriers being formed of II-VI semiconductor materials. A multiple wavelength QWIP is also disclosed and includes a plurality of QWIPs stacked onto a single epitaxial structure, in which the different QWIPs are designed to respond at different wavelengths. A dual wavelength QWIP is also disclosed and includes two QWIPs stacked onto a single epitaxial structure, in which one QWIP is designed to respond at 10 ?m and the other at 3-5 ?m wavelengths.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 21, 2014
    Applicant: THE TRUSTEES OF PRINCETON UNIVERSITY
    Inventors: Arvind Ravikumar, Claire Gmachl, Aidong Shen, Maria Tamargo