Patents by Inventor Vitalii Vlasko-Vlasov

Vitalii Vlasko-Vlasov 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).

  • Multiscale light amplification structures for surface enhanced Raman spectroscopy
    Patent number: 8837039
    Abstract: A method, system and article of manufacture for amplification of light for surface enhanced Raman spectroscopy. The method and system include a source of input light, a grating with grooves therein, a nanoparticle array disposed in the grooves with the nanoparticles and grating having a variety of selectable parameters. The combination of the nanoparticles and selected characteristics, including generating hot spots, and the features of the grating enable enhanced amplification of the input light signal to provide an output Raman signal of greatly increased intensity for Raman spectroscopy.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: September 16, 2014
    Assignee: Uchicago Argonne, LLC
    Inventors: Vitalii Vlasko-Vlasov, Aiqing Chen, Ulrich Welp, Stephen K Gray
  • Tunable, superconducting, surface-emitting teraherz source
    Patent number: 7715892
    Abstract: A compact, solid-state THz source based on the driven Josephson vortex lattice in a highly anisotropic superconductor such as Bi2Sr2CaCu2O8 that allows cw emission at tunable frequency. A second order metallic Bragg grating is used to achieve impedance matching and to induce surface emission of THz-radiation from a Bi2Sr2CaCu2O8 sample. Steering of the emitted THz beam is accomplished by tuning the Josephson vortex spacing around the grating period using a superimposed magnetic control field.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: May 11, 2010
    Assignee: Uchicago Argonne, LLC
    Inventors: Ulrich Welp, Alexei E. Koshelev, Kenneth E. Gray, Wai-Kwong Kwok, Vitalii Vlasko-Vlasov
  • TUNABLE, SUPERCONDUCTING, SURFACE-EMITTING TERAHERZ SOURCE
    Publication number: 20100041559
    Abstract: A compact, solid-state THz source based on the driven Josephson vortex lattice in a highly anisotropic superconductor such as Bi2Sr2CaCu2O8 that allows cw emission at tunable frequency. A second order metallic Bragg grating is used to achieve impedance matching and to induce surface emission of THz-radiation from a Bi2Sr2CaCu2O8 sample. Steering of the emitted THz beam is accomplished by tuning the Josephson vortex spacing around the grating period using a superimposed magnetic control field.
    Type: Application
    Filed: October 26, 2009
    Publication date: February 18, 2010
    Inventors: Ulrich WELP, Alexei E. Koshelev, Kenneth E. Gray, Wai-Kwong Kwok, Vitalii Vlasko-Vlasov
  • Tunable, superconducting, surface-emitting teraherz source
    Patent number: 7610071
    Abstract: A compact, solid-state THz source based on the driven Josephson vortex lattice in a highly anisotropic superconductor such as Bi2Sr2CaCu2O8 that allows cw emission at tunable frequency. A second order metallic Bragg grating is used to achieve impedance matching and to induce surface emission of THz-radiation from a Bi2Sr2CaCu2O8 sample. Steering of the emitted THz beam is accomplished by tuning the Josephson vortex spacing around the grating period using a superimposed magnetic control field.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: October 27, 2009
    Assignee: UChicago Argonne, LLC
    Inventors: Ulrich Welp, Alexei E. Koshelev, Kenneth E. Gray, Wai-Kwong Kwok, Vitalii Vlasko-Vlasov
  • Tunable, superconducting, surface-emitting teraherz source
    Publication number: 20070244012
    Abstract: A compact, solid-state THz source based on the driven Josephson vortex lattice in a highly anisotropic superconductor such as Bi2Sr2CaCu2O8 that allows cw emission at tunable frequency. A second order metallic Bragg grating is used to achieve impedance matching and to induce surface emission of THz-radiation from a Bi2Sr2CaCu2O8 sample. Steering of the emitted THz beam is accomplished by tuning the Josephson vortex spacing around the grating period using a superimposed magnetic control field.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 18, 2007
    Inventors: Ulrich Welp, Alexei Koshelev, Kenneth Gray, Wai-Kwong Kwok, Vitalii Vlasko-Vlasov