题目: 10dB vacuum noise squeezing and its application to the gravitational wave detector and on-chip quantum circuits
报告人：Prof. Ray-Kuang Lee （李瑞光）
National Tsing Hua University,Taiwan（台湾清华大学）
摘要：
In this talk, I will report our recent implementation of squeezed vacuum states at 1064 nm. With a bow-tie, optical parametric oscillator cavity, and our home-made balanced homodyne detectors, noise reduction up to 10dB below the vacuum is measured. With the operation of a 300 m filter cavity prototype installed at the National Astronomical Observatory of Japan, application of such a vacuum squeezed state to the gravitational wave detector, in order to achieve a broadband reduction, will be discussed. At the same time, based on the niche of silicon photonics technologies and semiconductor industries in Taiwan, we will also introduce our new project toward the implementation of scalable quantum photonic chips by integrating photonic qubits, optical components based on silicon photonics, and photon detector arrays.
1. Giulia Marcucci*, Davide Pierangeli, Aharon J. Agranat, Ray-Kuang Lee, Eugenio DelRe, and Claudio Conti, "Topological Control of Extreme Waves," Nature Comm. (accepted, Sep. 2019).
2. Minyi Huang, Ray-Kuang Lee*, Lijian Zhang, Shao-Ming Fei, and Junde Wu, "Simulating broken PT-symmetric Hamiltonian systems by weak measurement," Phys. Rev. Lett. 123, 080404 (2019).
3. D. V. Tsarev, T. V. Ngo, Ray-Kuang Lee, and A. P. Alodjants, "Nonlinear quantum metrology with moving matter-wave solitons," New J. Phys. 21, 083041 (2019).
4. Popo Yang, Ivan F. Valtierra, Andrei B. Klimov, Shin-Tza Wu, Ray-Kuang Lee, and Luis L. Sanchez-Soto*, and Gerd Leuchs, "The Wigner flow on the sphere," Physica Scripta 94, 044001 (2019).
5. Jeng Yi Lee and Ray-Kuang Lee, "Phase diagram for investigating the scattering properties of passive scatterers," SPIE Newsroom (May 2017).
简介：
Dr. Ray-Kuang Lee received his BS degree from the Department of Electrical Engineering, National Taiwan University (EE/NTU) in 1997, and his MS and PhD degrees from the Institute of Electro-Optical Engineering, National Chiao-Tung University in 1999 and 2004, respectively. He joined the Institute of Photonics Technologies/Department of Electrical Engineering, National Tsing Hua University (NTHU) as a faculty member at Aug. 2005, where he established the Quantum Optics Group dedicated to the quantum properties of light. Currently, he is also an adjunct Professor in the Department of Physics, NTHU, Center Scientist of the Physics division, National Center for Theoretical Sciences, and a board member for KAGRA Scientific Congress (KSC).
时间：2019年10月15日（星期二）上午10:00
地点：中科院物理研究所M253会议室
邀请人：李贝贝 副研究员（Tel：82649384）
联系人：陆 凌 研究员
主办单位：中国科学院光物理重点实验室
