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 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
554 2024-07-25 16:00    Generation and Certification of Optical Quantum States for Information Processing file
553 2024-07-23 16:00    Spin Conversion Research Towards Novel Spintronic Functionalities file
552 2024-07-22 14:00    Nonthermal electronic orders in photo-doped Mott insulators
551 2024-07-18 11:00    Acousto-electric non-local detection of magnon-phonon coupling
550 2024-07-10 16:00    [High Energy Theory Seminar] The Weak Gravity Conjecture in Perturbative String Theory
549 2024-07-03 16:00    [High Energy Theory Seminar] Holographic duals of Higgsed Dpb(BCD)
548 2024-06-13 16:00    [CAPP seminars]Simulation, design and fabrication of Josephson Parametric Amplifiers for axion search file
547 2024-06-13 16:00    Magnonic $\varphi$ Josephson junction and its non-Hermitian Josephson diode effect
546 2024-06-12 16:00    New high Tc superconductivity and symmetric pseudogap metal in the bilayer nickelate La3Ni2O7-Part2 file
545 2024-06-12 13:30    Competition between superconductivity and density waves in spin-degenerate and spin-orbit-coupled Bernal bilayer graphene
544 2024-06-05 10:00    Moir\’e fractals in supermoir\’e structures
543 2024-06-03 11:00    New high Tc superconductivity and symmetric pseudogap metal in the bilayer nickelate La3Ni2O7-Part1 file
542 2024-05-30 10:00    Quasiperiodic Effects in Quasicrystals
541 2024-05-29 16:00    [High Energy Theory Seminar] Amplitudes Meet Cosmology: From Inflation to the Large-Scale Structure
540 2024-05-28 11:00    동적평균장 이론 소개
539 2024-05-28 10:00    Mixed-State Quantum Spin Liquids and Dynamical Anyon Condensations in Kitaev Lindbladians
538 2024-05-16 16:00    [High Energy Theory Seminar] Conformal Collider Physics
537 2024-05-16 14:30    [Astrophysics Seminar] Observational Cosmology with Superconducting Sensors
536 2024-05-14 16:00    [High Energy Theory Seminar] Minimal Production of Prompt Gravitational Waves during Reheating.
535 2024-05-08 16:30    [High Energy Theory Seminar] Black Holes from Heavy Operators in N=4 SYM