Authors

S. Sekimoto; C. Watanabe; H. Minami; T. Yamamoto; T. Kashiwagi; R. A. Klemm;K. Kadowaki

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."

Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

JOSEPHSON-JUNCTION ARRAYS; SINGLE-CRYSTALS; THZ RADIATION; BI2SR2CACU2O8+DELTA; EMISSION; GENERATION; MILLIMETER; EMITTERS; Physics, Applied

Abstract

Using a modified mesa structure of high-T-c superconducting Bi2Sr2CaCu2O8+delta with a thin underlaying base superconductor (similar to 3 mu m), the effective working temperature of the continuous and monochromatic terahertz emitter is extended up to 70 K, and the maximum power of similar to 30 mu W at 0.44 THz is achieved at the relatively high temperature of T-b = 55 K in a low bias current retrapping region. The diverging behavior of the intensity occurring at 55 K in the low current regime without hot spot formation may provide us an important clue for the stronger THz radiation from intrinsic Josephson junction devices.

Journal Title

Applied Physics Letters

Volume

103

Issue/Number

18

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

5

WOS Identifier

WOS:000327816000030

ISSN

0003-6951

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