中国物理B ›› 2015, Vol. 24 ›› Issue (4): 47403-047403.doi: 10.1088/1674-1056/24/4/047403

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Tunable coplanar waveguide resonator with nanowires

周渝, 郏涛, 翟计全, 汪橙, 钟先茜, 曹志敏, 孙国柱, 康琳, 吴培亨   

  1. Research Institute of Superconductor Electronics (RISE), Nanjing University, Nanjing 210093, China
  • 收稿日期:2014-10-11 修回日期:2014-12-04 出版日期:2015-04-05 发布日期:2015-04-05
  • 基金资助:

    Project supported by the National Basic Research Program of China (Grant Nos. 2011CB922104 and 2011CBA00200), the National Natural Science Foundation of China (Grant No. 11474154), the Jiangsu Natural Science Fund for Distinguished Young Scholars (Grant No. BK2012013), and a Doctoral Program (Grant No. 20120091110030).

Tunable coplanar waveguide resonator with nanowires

Zhou Yu (周渝), Jia Tao (郏涛), Zhai Ji-Quan (翟计全), Wang Cheng (汪橙), Zhong Xian-Qian (钟先茜), Cao Zhi-Min (曹志敏), Sun Guo-Zhu (孙国柱), Kang Lin (康琳), Wu Pei-Heng (吴培亨)   

  1. Research Institute of Superconductor Electronics (RISE), Nanjing University, Nanjing 210093, China
  • Received:2014-10-11 Revised:2014-12-04 Online:2015-04-05 Published:2015-04-05
  • Contact: Sun Guo-Zhu, Wu Pei-Heng E-mail:gzsun@nju.edu.cn
  • Supported by:

    Project supported by the National Basic Research Program of China (Grant Nos. 2011CB922104 and 2011CBA00200), the National Natural Science Foundation of China (Grant No. 11474154), the Jiangsu Natural Science Fund for Distinguished Young Scholars (Grant No. BK2012013), and a Doctoral Program (Grant No. 20120091110030).

摘要:

A tunable superconducting half-wavelength coplanar waveguide resonator (CPWR) with Nb parallel nanowires ~ 300 nm in width embedded in the center conductor was designed, fabricated, and measured. The frequency shift and the amplitude attenuation of the resonance peak under irradiation of 404-nm pulse laser were observed with different light powers at 4.2 K. The RF power supplied to such a CPWR can serve as current bias, which will affect the light response of the resonator.

关键词: coplanar waveguide, niobium, resonator, superconducting nanowire

Abstract:

A tunable superconducting half-wavelength coplanar waveguide resonator (CPWR) with Nb parallel nanowires ~ 300 nm in width embedded in the center conductor was designed, fabricated, and measured. The frequency shift and the amplitude attenuation of the resonance peak under irradiation of 404-nm pulse laser were observed with different light powers at 4.2 K. The RF power supplied to such a CPWR can serve as current bias, which will affect the light response of the resonator.

Key words: coplanar waveguide, niobium, resonator, superconducting nanowire

中图分类号:  (Superconducting films and low-dimensional structures)

  • 74.78.-w
74.25.-q (Properties of superconductors) 81.07.Gf (Nanowires)