visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2022-03-31 16:00 
일시 4pm, 31th March 
장소 online 
연사 최현용 (서울대학교 물리천문학부) 
* 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 장소 제목
202 2012-04-02 16:00  E6, 1501  A new route to ferroelectricity in magnetic spinels: a case of Co2MnO4
201 2012-02-13 16:00  E6, 1501  Physics Colloquium : 2012 Spring
200 2011-09-03 16:00  E6, 1501  Physics Colloquium : 2011 Fall file
199 2011-05-16 16:00  E6, 1501  Photonics with surface plasmon polaritons
198 2010-02-14 16:00  E6, 1501  Physics Colloquium - 2011 Spring file
197 2010-09-06 16:00  E6, 1501  Physics Colloquium : 2010 Fall file
196 2010-02-08 16:00  E6, 1501  Physics Ciolloquium : 2010 Spring file
195 2009-10-21 16:00  E6, 1501  Interdimensional Universality of Dynamic Interfaces
194 2009-09-07 16:00  E6, 1501  Physics Colloquium : 2009 Fall file
193 2009-02-23 16:00  E6, 1501  Physics Colloquium : 2009 Spring file
192 2024-03-28 11:00  E6, #2501  Geometric characterization of thermoelectric performance of two-dimensional quadratic band-crossing semimetals
191 2022-03-28 16:00  E6, #1501  Ultimate-density atomic semiconductor via flat bands
190 2022-03-21 16:00  E6, #1501  Multi-wavelength Studies on Relativistic Jets from Gamma-ray Bright Active Galactic Nuclei
189 2022-04-25 16:00  E6, #1501  Ultrafast electron beam, a tool to explore the nanoscopic world of materials(우리말강의)
188 2022-03-07 16:00  E6, #1501  Climate Physics and Modelling(우리말강의)
187 2022-03-14 16:00  E6, #1501  Quantitative phase imaging and artificial intelligence: label-free 3D imaging, classification, and inference
186 2022-02-28 16:00  E6, #1501  Spin-based training of optical microscopes
185 2022-05-02 16:00  E6, #1501  What can we learn from the history of science and technology?(우리말강의)
184 2022-04-11 16:00  E6, #1501  Emergence of Statistical Mechanics in Quantum Systems
183 2022-05-23 16:00  E6, #1501  Novel electronic transport in topological van der Waals magnets