Patents by Inventor Dongxia Qu

Dongxia Qu 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).

  • Publication number: 20180145187
    Abstract: According to one embodiment, a device includes a first electrode, a second electrode spaced from the first electrode, a well extending between the first electrode and the second electrode, one or more chalcogens in the well, and at least one halogen mixed with the one or more chalcogens in the well. In addition, the chalcogens are selected from the group consisting of sulfur, selenium, tellurium, and polonium.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 24, 2018
    Inventors: Lars Voss, Clint Frye, Roger A. Henderson, John Winter Murphy, Rebecca J. Nikolic, Dongxia Qu, Qinghui Shao, Mark A. Stoyer
  • Publication number: 20170221595
    Abstract: According to one embodiment, a product includes an array of three dimensional structures, a cavity region between each of the three dimensional structures, and a first material in contact with at least one surface of each of the three dimensional structures. In addition, each of the three dimensional structures includes a semiconductor material, where at least one dimension of each of the three dimensional structures is in a range of about 0.5 microns to about 10 microns. Moreover, the first material is configured to provide high energy particle and/or ray emissions.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 3, 2017
    Inventors: Clint Frye, Roger A. Henderson, John Winter Murphy, Rebecca J. Nikolic, Dongxia Qu, Qinghui Shao, Mark A. Stoyer, Lars Voss
  • Patent number: 8294898
    Abstract: The present invention relates to a rotationally asymmetric chaotic optical multi-pass cavity useful in optical gas sensing spectroscopy, optical delay lines, and laser amplification systems, for example. The cavity may include a single closed mirror having a light reflective surface that is deformed in two orthogonal directions and more particularly, but not exclusively, in the shape of a quadrupole in both horizontal and vertical planes. The cavity includes a light entry port and a light exit port which may be the same or separate ports, as well as a gas inlet and a gas outlet. The optical path length, the beam divergence rate, and the spot pattern are controlled by selecting the cavity deformation coefficients and the input beam direction to achieve the desired beam path and beam quality.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: October 23, 2012
    Assignee: Trustees of Princeton University
    Inventors: Dongxia Qu, Claire Gmachl
  • Publication number: 20090059235
    Abstract: The present invention relates to a rotationally asymmetric chaotic optical multi-pass cavity useful in optical gas sensing spectroscopy, optical delay lines, and laser amplification systems, for example. The cavity may include a single closed mirror having a light reflective surface that is deformed in two orthogonal directions and more particularly, but not exclusively, in the shape of a quadrupole in both horizontal and vertical planes. The cavity includes a light entry port and a light exit port which may be the same or separate ports, as well as a gas inlet and a gas outlet. The optical path length, the beam divergence rate, and the spot pattern are controlled by selecting the cavity deformation coefficients and the input beam direction to achieve the desired beam path and beam quality.
    Type: Application
    Filed: August 25, 2008
    Publication date: March 5, 2009
    Inventors: Dongxia Qu, Claire Gmachl