【Special colloquium】Nonequilibrium & nonlinear terahertz spectroscopy study on Higgs modes in conventional/unconventional superconductors
by
Tsung-Dao Lee Institute/N4F-N400 - meeting room
Tsung-Dao Lee Institute
Tencent link:
https://meeting.tencent.com/dm/W51hJ4lwuOJu ( meeting ID: 665 432 019 no password)
Host: Prof. Hong Ding (丁洪)
Abstract:
Ultra-short laser pulses play a crucial role in advancing ultrafast time-resolved spectroscopic techniques, which are essential for detecting and characterizing non-equilibrium and nonlinear responses in quantum materials. Intense laser pulses can also trigger non-adiabatic phase transitions. In this talk, I will discuss the use of equilibrium and non-equilibrium optical/THz spectroscopy in studying quantum materials, followed by a focus on our recent research on detecting Higgs modes in conventional superconductors and high-Tc cuprates using terahertz pump-terahertz probe and terahertz third harmonic generation spectroscopies.
Biography:
Nan-Lin Wang is a chair professor at the International Center for Quantum Materials, School of Physics, Peking University. He is also a vice-president of Beijing Academy of Quantum Information Sciences. He received his PhD degree in physics from USTC in 1992. Prior to joining IOP/CAS in 2000, he had research stays in several institutes in Germany, Japan, and Canada as a Humboldt fellow, STA/ISTEC fellow, and research associate. His research primarily focuses on infrared and terahertz spectroscopy studies of superconductivity and strongly correlated electronic systems. He has published over 340 papers with over 17,000 citations. He received the YeQiSun Award from the Chinese Physical Society in 2009, the first-class prize of China's state natural science award in 2013, and was elected as a fellow of the American Physical Society in 2012.
