<研究ノート>高温超伝導体からのコヒーレントな連続テラヘルツ波の発生

Abstract

Since the first demonstration of intense, continuous, coherent terahertz emission from a stack of intrinsic Josephson junctions (IJJs) in high transition temperature superconductor Bi[2]Sr[2]CaCu[2]O[8+δ], terahertz generation utilizing IJJ stacks has become a major topic of research, both in terms of experiment and theory. In this Research Report, the author reviews basic research on the superconducting IJJ terahertz sources. The author will present a couple of recent topics: For example, direct imaging of local temperature distributions in the emitting IJJ stack using a fluorescent technique.