visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2022-03-31 16:00 
연사  
장소 online 
* Title:  Ultrafast time-resolved spectroscopy in topological materials
 
* Speaker: 최현용 (서울대학교 물리천문학부)
 
* Date: 4pm, 31th March
 
 
* Abstract
In this seminar, I will talk about how the extremely fast light, called “ultrafast” laser, is used to investigate the time-resolved phenomena in topological quantum materials. The key players are all optical spectroscopy, optical Stark (Floquet) spectroscopy, and terahertz (THz) spectroscopy. Followed by an introduction about the ultrafast spectroscopy, focus will be made on the following topics. (i) Non-excitonic valley Hall effect in a heterostructure consisted of a monolayer TMD and 2D topological insulator. (ii) Optical Stark effect in a gate-tunable WSe2 device, where we investigate the repulsive and attractive exiton-polarons. (iii) Finally, if time is permitted, I will introduce our THz-pump and THz-probe investigations on the transient dynamics of 3D topological insulators.
번호 날짜 연사 제목
공지 2025-04-29 10:00  Dr. Yeonju Go (Brookhaven National Laboratory)  Exploring the Hottest Matter in the Universe: Quark-Gluon Plasma through Hard Probes and Artificial Intelligence
공지 2025-05-01 16:00  Dr. Inwook Kim (Lawrence Livermore National Laboratory)  BSM Physics Search with Quantum Sensors
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
270 2022-01-18 14:00    Data-driven interrogation of biological dynamics: from subcellular interactions to neuronal networks in vivo file
269 2022-01-25 15:00    Emulating twisted double bilayer graphene with a multiorbital optical lattice file
268 2022-01-26 13:00    An Introduction to Cohomology groups file
267 2022-02-28 16:00    Spin-based training of optical microscopes
266 2022-03-07 16:00    Climate Physics and Modelling(우리말강의)
265 2022-03-14 16:00    Quantitative phase imaging and artificial intelligence: label-free 3D imaging, classification, and inference
264 2022-03-18 11:00    (응집물리 세미나) Illuminating exotic states of matter: Raman spectroscopy as an experimental tool to characterize quantum spin liquids file
263 2022-03-21 16:00    Multi-wavelength Studies on Relativistic Jets from Gamma-ray Bright Active Galactic Nuclei
262 2022-03-25 11:00    (응집물리 세미나) Hund's metallicity in ruthenate systems file
261 2022-03-28 16:00    Ultimate-density atomic semiconductor via flat bands
260 2022-03-29 10:00    Non-reciprocal phase transitions file
259 2022-03-31 10:00    Weiss fields for Quantum Spin Dynamics file
» 2022-03-31 16:00    (광학분야 특별세미나)Ultrafast time-resolved spectroscopy in topological materials
257 2022-04-01 16:00    High-field Electron Transport and Interaction Induced Phenomena in 2D Materials file
256 2022-04-04- 16:00    New paradigms in Quantum Field Theory
255 2022-04-08 11:00    (응집물리 세미나) Flat-surface-assisted physical phenomena occurring in single crystal metal thin film file
254 2022-04-11 16:00    Emergence of Statistical Mechanics in Quantum Systems
253 2022-04-13 10:30    Harnessing topology and correlations from singularities in 3d-kagome metals
252 2022-04-14 16:00    (광학분야 특별세미나)Holographic tomography of dielectric tensors at optical frequency
251 2022-04-15 11:00    (응집물리 세미나) First-principles studies of polar oxides and their applications file