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Title: Tunable, superconducting, surface-emitting teraherz source

Abstract

A compact, solid-state THz source based on the driven Josephson vortex lattice in a highly anisotropic superconductor such as Bi.sub.2Sr.sub.2CaCu.sub.2O.sub.8 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 Bi.sub.2Sr.sub.2CaCu.sub.2O.sub.8 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.

Inventors:
 [1];  [2];  [3];  [3];  [4]
  1. Lisle, IL
  2. Bolingbrook, IL
  3. Evanston, IL
  4. Downers Grove, IL
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
988985
Patent Number(s):
7610071
Application Number:
11/728,615
Assignee:
UChicago Argonne, LLC (Chicago, IL)
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Welp, Ulrich, Koshelev, Alexei E, Gray, Kenneth E, Kwok, Wai-Kwong, and Vlasko-Vlasov, Vitalii. Tunable, superconducting, surface-emitting teraherz source. United States: N. p., 2009. Web.
Welp, Ulrich, Koshelev, Alexei E, Gray, Kenneth E, Kwok, Wai-Kwong, & Vlasko-Vlasov, Vitalii. Tunable, superconducting, surface-emitting teraherz source. United States.
Welp, Ulrich, Koshelev, Alexei E, Gray, Kenneth E, Kwok, Wai-Kwong, and Vlasko-Vlasov, Vitalii. Tue . "Tunable, superconducting, surface-emitting teraherz source". United States. https://www.osti.gov/servlets/purl/988985.
@article{osti_988985,
title = {Tunable, superconducting, surface-emitting teraherz source},
author = {Welp, Ulrich and Koshelev, Alexei E and Gray, Kenneth E and Kwok, Wai-Kwong and Vlasko-Vlasov, Vitalii},
abstractNote = {A compact, solid-state THz source based on the driven Josephson vortex lattice in a highly anisotropic superconductor such as Bi.sub.2Sr.sub.2CaCu.sub.2O.sub.8 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 Bi.sub.2Sr.sub.2CaCu.sub.2O.sub.8 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 27 00:00:00 EDT 2009},
month = {Tue Oct 27 00:00:00 EDT 2009}
}

Works referenced in this record:

Terahertz Imaging For Drug Detection And Large-Scale Integrated Circuit Inspection
journal, January 2004


Vortex-flow electromagnetic emission in stacked intrinsic Josephson junctions
journal, April 2006


Intrinsic Josephson effects in Bi 2 Sr 2 CaCu 2 O 8 single crystals
journal, April 1992


Fiske and flux-flow modes of the intrinsic Josephson junctions in Bi2Sr2CaCu2Oy mesas
journal, April 1998


Plasma excitation by vortex flow
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Terahertz oscillation in submicron sized intrinsic Josephson junctions
journal, December 2006


Cutting-edge terahertz technology
journal, February 2007


Josephson-Vortex-Flow Terahertz Emission in Layered High- T c Superconducting Single Crystals
journal, January 2007


Radiation from Flux Flow in Josephson Junction Structures
journal, December 2006


Emission of terahertz electromagnetic waves by vortex flow in high-Tc superconductors
journal, May 2006


DOE-NSF-NIH Workshop on Opportunities in THz Science, February 12-14, 2004
report, February 2004


Emission of continuous coherent terahertz waves with tunable frequency by intrinsic Josephson junctions
journal, April 2005


Two-dimensional resonant modes in stacked Josephson junctions
journal, September 1994


Dynamical properties of Josephson vortices in mesoscopic intrinsic Josephson junctions in single crystalline Bi2Sr2CaCu2O8+δ
journal, May 2006


Terahertz technology
journal, March 2002


Fiske steps in intrinsic Bi 2 Sr 2 CaCu 2 O 8 + x stacked Josephson junctions
journal, April 1999


Detection of 0.5THz radiation from intrinsic Bi2Sr2CaCu2O8 Josephson junctions
journal, June 2006