Patents by Inventor Yongqi Fu

Yongqi Fu 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).

  • Plasmonic structure lens and its application for online inspection
    Patent number: 7888663
    Abstract: A surface plasmonic polariton lens is disclosed that has an optical plate having incident thereupon waves of electromagnetic radiation. The plate also has a thin metal film of a metal having a negative permittivity. There are slits in the thin film, the slits being of decreasing radial width, and decreasing radial separation at increasing radius and being for the transmission therethrough of diffracted waves of the electromagnetic radiation. There are rings between the slits, the rings being of decreasing radial width at increasing radius and being for the transmission therethrough of evanescent waves of the electromagnetic radiation. The diffracted waves and the evanescent waves form propagated waves. A probe with such a lens, and an inspection apparatus and method using the probe are also disclosed.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: February 15, 2011
    Assignee: Nanyang Technological University
    Inventors: Wei Zhou, Yongqi Fu, Enk Ng Lim
  • PLASMONIC STRUCTURE LENS AND ITS APPLICATION FOR ONLINE INSPECTION
    Publication number: 20090261250
    Abstract: A surface plasmonic polariton lens is disclosed that has an optical plate having incident thereupon waves of electromagnetic radiation. The plate also has a thin metal film of a metal having a negative permittivity. There are slits in the thin film, the slits being of decreasing radial width, and decreasing radial separation at increasing radius and being for the transmission therethrough of diffracted waves of the electromagnetic radiation. There are rings between the slits, the rings being of decreasing radial width at increasing radius and being for the transmission therethrough of evanescent waves of the electromagnetic radiation. The diffracted waves and the evanescent waves form propagated waves. A probe with such a lens, and an inspection apparatus and method using the probe are also disclosed.
    Type: Application
    Filed: April 16, 2008
    Publication date: October 22, 2009
    Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Wei Zhou, Yongqi Fu, Enk Ng Lim