Abbreviated Journal Title
Appl. Phys. Lett.
Keywords
SINGLE-CRYSTALS; THZ RADIATION; Physics, Applied
Abstract
To obtain higher power P and frequency f emissions from the intrinsic Josephson junctions in a high-T-c superconducting Bi2Sr2CaCu2O8+delta single crystal, we embedded a rectangular stand-alone mesa of that material in a sandwich structure to allow for efficient heat exhaust. By varying the current-voltage (I-V) bias conditions and the bath temperature T-b, f is tunable from 0.3 to 1.6 THz. The maximum P of a few tens of mu W, an order of magnitude greater than from previous devices, was found at T-b similar to 55K on an inner I-V branch at the TM(1,0) cavity resonance mode frequency. The highest f of 1.6 THz was found at T-b = 10K on an inner I-V branch, but away from cavity resonance frequencies. A possible explanation is presented.
Journal Title
Applied Physics Letters
Volume
106
Issue/Number
9
Publication Date
1-1-2015
Document Type
Article
DOI Link
Language
English
First Page
5
WOS Identifier
ISSN
0003-6951
Recommended Citation
Kashiwagi, Takanari; Yamamoto, Takashi; Kitamura, Takeo; Asanuma, Kentaro; Watanabe, Chiharu; Nakade, Kurama; Yasui, Takaki; Saiwai, Yoshihiko; Shibano, Yuuki; Kubo, Hiroyuki; Sakamoto, Kazuki; Katsuragawa, Takuya; Tsujimoto, Manabu; Delfanazari, Kaveh; Yoshizaki, Ryozo; Minami, Hidetoshi; Klemm, Richard A.; and Kadowaki, Kazuo, "Generation of electromagnetic waves from 0.3 to 1.6 terahertz with a high-T-c superconducting Bi2Sr2CaCu2O8+delta intrinsic Josephson junction emitter" (2015). Faculty Bibliography 2010s. 6620.
https://stars.library.ucf.edu/facultybib2010/6620
Comments
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"This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in the linked citation and may be found originally at Applied Physics Letters."