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Title: Temperature dependence of terahertz emission by an asymmetric intrinsic Josephson junction device
Authors: Kakeya, Itsuhiro  kyouindb  KAKEN_id
Hirayama, Nobuo
Omukai, Yuta
Suzuki, Minoru
Author's alias: 掛谷, 一弘
Issue Date: 30-Jan-2015
Publisher: AIP Publishing
Journal title: Journal of Applied Physics
Volume: 117
Issue: 4
Thesis number: 043914
Abstract: This study investigates the effect of temperature on the emission frequency of an intrinsic Josephson junction terahertz (THz) electromagnetic wave source, which can be used for high-speed communications by THz carrier wave. The characteristic emission features of two device types (asymmetric and symmetric) and two bias regimes (low and high) were determined. The bias-dependent emission frequency was temperature dependent in the asymmetric device, most likely reflecting the temperature-dependent London penetration depth. The bias tunability of the emission frequency can be explained by device self-heating, which significantly and inhomogeneously raises the temperatures of the device from its bath temperature. These findings are consistent with previous studies of temperature distribution in these devices.
Rights: © 2015 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article may be found at http://scitation.aip.org/content/aip/journal/jap/117/4/10.1063/1.4906849
The full-text file will be made open to the public on 30 January 2016 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
URI: http://hdl.handle.net/2433/216403
DOI(Published Version): 10.1063/1.4906849
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