Development of high-Tc superconducting THz emitters

T. Kashiwagi, S. Nakagawa, T. Imai, G. Kuwano, Y. Kaneko, Y. Ono, S. Kusunose, T. Yamamoto, H. Minami, M. Tsujimoto, K. Kadowaki

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Since the discovery of continuous, coherent THz radiation from intrinsic Josephson junctions (IJJs) constructed in the single crystals of Bi2Sr2CaCu2O8+δ in 2007, various types of device structures have been developed. Thermal management of Joule heat in the IJJ mesa structure is the most important issue to improve the radiation characteristics of the IJJ-THz emitters. The radiation frequencies ranging from 0.3 to 2.4 THz, the emission power of $ \sim 30$ pW/mesa and the radiation linewidth of 0.2 GHz at $ \sim 0.5$ THz were obtained from the thermal managed device structures so far. We show a brief overview of the IJJ-THz emitters in our group.

Original languageEnglish
Title of host publicationIRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves
EditorsCarlo Sirtori, Jerome Tignon
PublisherIEEE
Number of pages3
Volume2019-September
ISBN (Electronic)978-1-5386-8285-2
DOIs
Publication statusPublished - 2019
Event44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019 - Paris, France
Duration: 1 Sep 20196 Sep 2019

Conference

Conference44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019
CountryFrance
CityParis
Period1/09/196/09/19

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