Patents by Inventor Stepan Bulanov

Stepan Bulanov 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).

  • Shock injector for low-laser energy electron injection in a laser plasma accelerator
    Patent number: 10433412
    Abstract: This disclosure provides systems, methods, and apparatus related to laser plasma accelerators. In one aspect a block of material defines a gas inlet, a chamber in fluid communication with the gas inlet, a throat in fluid communication with the chamber, a channel in fluid communication with the throat, and a gas outlet in fluid communication with the channel. The throat is configured to generate a supersonic flow of a gas when the gas flows through the throat. The channel includes a ramp that is positioned proximate the gas outlet, with the ramp being inclined at an angle with respect to a direction of a flow of the gas proximate a surface of the channel prior to the ramp at the gas outlet.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: October 1, 2019
    Assignee: The Regents of the University of California
    Inventors: Hann-Shin Mao, Wim Leemans, Stepan Bulanov
  • SHOCK INJECTOR FOR LOW-LASER ENERGY ELECTRON INJECTION IN A LASER PLASMA ACCELERATOR
    Publication number: 20180168024
    Abstract: This disclosure provides systems, methods, and apparatus related to laser plasma accelerators. In one aspect a block of material defines a gas inlet, a chamber in fluid communication with the gas inlet, a throat in fluid communication with the chamber, a channel in fluid communication with the throat, and a gas outlet in fluid communication with the channel. The throat is configured to generate a supersonic flow of a gas when the gas flows through the throat. The channel includes a ramp that is positioned proximate the gas outlet, with the ramp being inclined at an angle with respect to a direction of a flow of the gas proximate a surface of the channel prior to the ramp at the gas outlet.
    Type: Application
    Filed: February 12, 2018
    Publication date: June 14, 2018
    Inventors: Hann-Shin Mao, Wim Leemans, Stepan Bulanov