SEMINAR on 27th Nov 2015
Title: Sensitive Detection of Electromagnetic Signals: Superconducting Electronic Devices and Their Applications Presenter: Professor Peiheng Wu (Research Institute of Superconductor Electronics (RISE), University of Nanjing CHINA)
Location: LKM Theatre (AIIM Facility, Innovation Campus)
To be able to detect electromagnetic signals as sensitively as possible is of fundamental importance for both theoretical and practical purposes. To this field superconducting devices can contribute much because of their low noise, high speed, and broad bandwidth. In this talk I shall begin with a brief review of the physics behind the electronic applications of superconducting devices. Then discussed will be the passive microwave superconducting devices, terahertz superconducting receivers, and superconducting single photon detectors at 1.55 micron waveband, in each case mainly focusing on what we have been doing in my institute RISE.
Biography: P. H Wu (Peiheng Wu) is a professor at University of Nanjing, Nanjing, China; he is a member of the Chinese Academy of Sciences. Having worked in the field of superconductor electronics for a long time, Prof. Wu is noted for his various achievements in high frequency applications of superconducting electronic devices. Currently he is interested in single photon detection, quantum information technology, and terahertz science and technology, all based on superconducting devices.
Some recent publications: J. Li et al, Local destruction of superconductivity by non-magnetic impurities in mesoscopic iron-based superconductors, NATURE COMMUNICATIONS 6, 7614 (2015) L. H. Gao et al, Broadband diffusion of terahertz waves by multi-bit coding metasurfaces, LIGHT-SCIENCE & APPLICATIONS 4, e324 (2015) D. Y. An et al, Terahertz emission and detection both based on high-T-c superconductors: Towards an integrated receiver, APPLIED PHYSICS LETTERS 102, 092601 (2013) X. L. Wu et al, Green light stimulates terahertz emission from mesocrystal microspheres, Nature Nanotechnology 6,103–106 (2011) Guozhu Sun et al,Tunable quantum beam splitters for coherent manipulation of a solid-state tripartite qubit system,Nature Communications 1, 1-7 (2010) H. B. Wang et al, Coherent Terahertz Emission of Intrinsic Josephson Junction Stacks in the Hot Spot Regime, PHYSICAL REVIEW LETTERS 105, 057002 (2010).