Patents by Inventor Sokratis KALLIAKOS

Sokratis KALLIAKOS 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 device and a method of fabricating an optical device
    Patent number: 9761756
    Abstract: An optical device comprising: a photonic crystal structure, comprising: a layer of a first material, the layer comprising a quantum emitter; and a plurality of regions of a second material in the layer of the first material, the regions arranged in a regular lattice having at least one region missing from the lattice so that a defect is formed, wherein the quantum emitter is located in the defect part of the photonic crystal structure; wherein the second material has a different refractive index to the first material; and an electrode which is electrically contacted to only the defect part of the photonic crystal structure.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: September 12, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Sokratis Kalliakos, Joanna Krystyna Skiba-Szymanska, David Julian Peter Ellis, Andrew James Shields
  • OPTICAL DEVICE AND A METHOD OF FABRICATING AN OPTICAL DEVICE
    Publication number: 20160240728
    Abstract: An optical device comprising: a photonic crystal structure, comprising: a layer of a first material, the layer comprising a quantum emitter; and a plurality of regions of a second material in the layer of the first material, the regions arranged in a regular lattice having at least one region missing from the lattice so that a defect is formed, wherein the quantum emitter is located in the defect part of the photonic crystal structure; wherein the second material has a different refractive index to the first material; and an electrode which is electrically contacted to only the defect part of the photonic crystal structure.
    Type: Application
    Filed: September 22, 2015
    Publication date: August 18, 2016
    Inventors: Sokratis KALLIAKOS, Joanna Krystyna SKIBA-SZYMANSKA, David Julian Peter ELLIS, Andrew James SHIELDS