Title

High Temperature Superconductor Terahertz Emitters: Fundamental Physics And Its Applications

Abstract

Coherent and continuous radiation sources of the electromagnetic (EM) waves at terahertz (1 THz = 10 12 c/s) frequencies using a mesa structure fabricated from high temperature superconducting Bi 2Sr 2CaCu 2O 8+δ single crystals are described with a special emphasis on the physics of the radiation mechanism and the applications. After the intensive studies of many mesas fabricated with different conditions, it is revealed that the ac-Josephson effect works as a primary driving mechanism of the radiation and the cavity resonance needed for stronger radiation plays an additional role to the mechanism, although both are working together while radiating. A prototype of the imaging machine for multipurpose uses has successfully been developed. © 2012 The Japan Society of Applied Physics.

Publication Date

1-1-2012

Publication Title

Japanese Journal of Applied Physics

Volume

51

Issue

1

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1143/JJAP.51.010113

Socpus ID

84862907836 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84862907836

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