Invention Grant
- Patent Title: Tunable, superconducting, surface-emitting teraherz source
- Patent Title (中): 可调谐，超导，表面发射太赫兹源
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Application No.: US12605997Application Date: 2009-10-26
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Publication No.: US07715892B2Publication Date: 2010-05-11
- Inventor: Ulrich Welp , Alexei E. Koshelev , Kenneth E. Gray , Wai-Kwong Kwok , Vitalii Vlasko-Vlasov
- Applicant: Ulrich Welp , Alexei E. Koshelev , Kenneth E. Gray , Wai-Kwong Kwok , Vitalii Vlasko-Vlasov
- Applicant Address: US IL Chicago
- Assignee: Uchicago Argonne, LLC
- Current Assignee: Uchicago Argonne, LLC
- Current Assignee Address: US IL Chicago
- Agency: Foley & Lardner LLP
- Main IPC: H01L39/08
- IPC: H01L39/08 ; H01L39/22 ; G01R33/02
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.
Public/Granted literature
- US20100041559A1 TUNABLE, SUPERCONDUCTING, SURFACE-EMITTING TERAHERZ SOURCE Public/Granted day:2010-02-18
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