Patents by Inventor Christopher Andrew Dirdal

Christopher Andrew Dirdal 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).

  • Optical Metasurfaces
    Publication number: 20230072722
    Abstract: An apparatus comprising a first substrate comprising a nanostructured surface, thereby forming an optical metasurface; a mirror formed on a second substrate; and a mechanism arranged to move the first and second substrates relative to one another. The mechanism alters a separation between the first and second substrates between a first separation distance and at least a second separation distance. At the first separation distance the optical metasurface performs a first manipulation of incident light and at the second separation distance the optical metasurface does not perform the first manipulation of incident light. An optical system and a method are also described.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 9, 2023
    Applicants: Sintef TTO AS, University of Southern Denmark
    Inventors: Sergey I. Bozhevolnyi, Chao Meng, Fei Ding, Christopher Andrew Dirdal, Jo Gjessing, Paul Conrad Vaagen Thrane