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Title: Emission of coherent THz-radiation from superconductors.

Abstract

Compact solid-state sources of terahertz (THz) radiation are being sought for sensing, imaging, and spectroscopy applications across the physical and biological sciences. We demonstrate that coherent continuous-wave THz radiation of sizable power can be extracted from intrinsic Josephson junctions in the layered high-temperature superconductor Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}. In analogy to a laser cavity, the excitation of an electromagnetic cavity resonance inside the sample generates a macroscopic coherent state in which a large number of junctions are synchronized to oscillate in phase. The emission power is found to increase as the square of the number of junctions reaching values of 0.5 microwatt at frequencies up to 0.85 THz, and persists up to 50 kelvin. These results should stimulate the development of superconducting compact sources of THz radiation.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); Japanese Ministry of Education, Culture and Technology; Turkish TUBITAK
OSTI Identifier:
920573
Report Number(s):
ANL/MSD/JA-60535
Journal ID: ISSN 0193-4511; SCEHDK; TRN: US0805297
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Science
Additional Journal Information:
Journal Volume: 318; Journal Issue: 5854 ; Nov. 23, 2007; Journal ID: ISSN 0193-4511
Country of Publication:
United States
Language:
ENGLISH
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANNIHILATION OPERATORS; EIGENSTATES; EXCITATION; JOSEPHSON JUNCTIONS; LASERS; RADIATIONS; RESONANCE; SPECTROSCOPY; SUPERCONDUCTORS

Citation Formats

Ozyuzer, L, Koshelev, A E, Kurter, C, Gopalsami, N, Li, Q, Tachiki, M, Kadowaki, K, Yamamoto, T, Minami, H, Yamaguchi, H, Tachiki, T, Gray, K E, Kwok, W - K, Welp, U, Izmir Inst. Tech., Illinois Inst. Tech., Univ. Tokyo, Univ. Tsukuba, and Academy, Nat Defence. Emission of coherent THz-radiation from superconductors.. United States: N. p., 2007. Web. doi:10.1126/science.1149802.
Ozyuzer, L, Koshelev, A E, Kurter, C, Gopalsami, N, Li, Q, Tachiki, M, Kadowaki, K, Yamamoto, T, Minami, H, Yamaguchi, H, Tachiki, T, Gray, K E, Kwok, W - K, Welp, U, Izmir Inst. Tech., Illinois Inst. Tech., Univ. Tokyo, Univ. Tsukuba, & Academy, Nat Defence. Emission of coherent THz-radiation from superconductors.. United States. https://doi.org/10.1126/science.1149802
Ozyuzer, L, Koshelev, A E, Kurter, C, Gopalsami, N, Li, Q, Tachiki, M, Kadowaki, K, Yamamoto, T, Minami, H, Yamaguchi, H, Tachiki, T, Gray, K E, Kwok, W - K, Welp, U, Izmir Inst. Tech., Illinois Inst. Tech., Univ. Tokyo, Univ. Tsukuba, and Academy, Nat Defence. 2007. "Emission of coherent THz-radiation from superconductors.". United States. https://doi.org/10.1126/science.1149802.
@article{osti_920573,
title = {Emission of coherent THz-radiation from superconductors.},
author = {Ozyuzer, L and Koshelev, A E and Kurter, C and Gopalsami, N and Li, Q and Tachiki, M and Kadowaki, K and Yamamoto, T and Minami, H and Yamaguchi, H and Tachiki, T and Gray, K E and Kwok, W - K and Welp, U and Izmir Inst. Tech. and Illinois Inst. Tech. and Univ. Tokyo and Univ. Tsukuba and Academy, Nat Defence},
abstractNote = {Compact solid-state sources of terahertz (THz) radiation are being sought for sensing, imaging, and spectroscopy applications across the physical and biological sciences. We demonstrate that coherent continuous-wave THz radiation of sizable power can be extracted from intrinsic Josephson junctions in the layered high-temperature superconductor Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}. In analogy to a laser cavity, the excitation of an electromagnetic cavity resonance inside the sample generates a macroscopic coherent state in which a large number of junctions are synchronized to oscillate in phase. The emission power is found to increase as the square of the number of junctions reaching values of 0.5 microwatt at frequencies up to 0.85 THz, and persists up to 50 kelvin. These results should stimulate the development of superconducting compact sources of THz radiation.},
doi = {10.1126/science.1149802},
url = {https://www.osti.gov/biblio/920573}, journal = {Science},
issn = {0193-4511},
number = 5854 ; Nov. 23, 2007,
volume = 318,
place = {United States},
year = {Fri Nov 23 00:00:00 EST 2007},
month = {Fri Nov 23 00:00:00 EST 2007}
}