Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ulrich Welp0
Kenneth E. Gray0
Wai-Kwong Kwok0
Vitalii Vlasko-Vlasov0
Alexei E. Koshelev0
Date of Patent
May 11, 2010
0Patent Application Number
126059970
Date Filed
October 26, 2009
0Patent Primary Examiner
Patent 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.
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