Time-domain coherence measurement and substitution effect of HTSC THz source

2016 Fiscal Year Final Research Report

• Project/Area Number: 26286006
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Nanostructural physics
• Research Institution: Kyoto University
• Principal Investigator: Kakeya Itsuhiro 京都大学, 工学(系)研究科(研究院), 准教授 (80302389)
• Co-Investigator(Kenkyū-buntansha): 辻本 学 筑波大学, 数理物質科学研究科, 助教 (20725890)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 固有ジョセフソン接合 / テラヘルツ波 / 時間領域測定 / 置換効果

Outline of Final Research Achievements

On terahertz radiations from high-Tc superconductors, we have been successful in emission of circularly-polarized waves from truncated-edged mesa structures. This feature is useful for applications of mobile communications. Furthermore, time-domain spectroscopy measurements were progressed in HTSC terahertz emitters to verify highly-coherent emission from them. In order to have higher emission power, we designed module structures which may suppress temperature rise of superconducting device. The module was tested by comparing emission properties of actual emitters.

Free Research Field

固体物理