US Patent No. 10,172,228

APPARATUS FOR MM-WAVE RADIATION GENERATION UTILIZING WHISPERING GALLERY MODE RESONATORS


Patent No. 10,172,228
Issue Date January 01, 2019
Title Apparatus For Mm-wave Radiation Generation Utilizing Whispering Gallery Mode Resonators
Inventorship Sami G. Tantawi, Stanford, CA (US)
Filippos Toufexis, Redwood City, CA (US)
Michael V. Fazio, San Carlos, CA (US)
Valery A. Dolgashev, San Carlos, CA (US)
Assignee The Board of Trustees of the Leland Stanford Junior University, Stanford, ...

Claim of US Patent No. 10,172,228

1. An apparatus for generating mm-wave electromagnetic radiation at an output frequency comprising: a) a whispering gallery mode resonator with a guiding surface, wherein the whispering gallery mode resonator has dimensions selected to support a whispering gallery electromagnetic eigenmode at the output frequency, b) an output waveguide coupled to the whispering gallery mode resonator through an aperture, and c) an electron beam source, wherein the electron beam source is designed to generate a velocity vector-modulated electron beam, wherein the electron beam source is configured such that the velocity vector-modulated electron beam travels substantially perpendicular to the guiding surface.