visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2015-11-10 16:00 
연사  
장소 E6-2, #1323 

“Rapid heating of matter using high power lasers

 

 Dr. Woosuk Bang

Physics division, Los Alamos National Laboratory

 

Nov. 10 (TUE), 4:00 p.m. , Seminar Room(#1323)

 

 With the development of several novel heating sources, scientists can now heat a small sample rapidly above 10,000 K. Although matter at such an extreme state, known as warm dense matter, is commonly found in astrophysics (e.g., in planetary cores) as well as in high energy density physics experiments, its properties are not well understood and are difficult to predict theoretically. A sufficiently large warm dense matter sample that is uniformly heated would be ideal for these studies, but has been unavailable to date. On the Trident laser facility at Los Alamos National Laboratory, we have used a beam of quasi-monoenergetic aluminum ions to heat gold and diamond foils rapidly and uniformly. For the first time, we visualized directly the expanding warm dense gold and diamond with an optical streak camera. We developed a new technique to determine the initial temperature of these heated samples from the measured expansion speeds of gold and diamond into vacuum. We anticipate the uniformly heated solid density target will allow for direct quantitative measurements of equation-of-state, conductivity, opacity, and stopping power of warm dense matter, benefiting plasma physics, astrophysics, and nuclear physics.

Using even smaller targets (~10 nm radius spheres of solid deuterium), ion temperatures exceeding 108 K have been achieved in the laboratory. We will discuss briefly about nuclear fusion experiments using high power lasers.

 

Contact: Yoonsoo Kim, Administration Office.  Tel. 2599

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)
194 2022-11-11 11:00    [Update 세미나영상] (응집물리 세미나) Honeycomb oxide heterostructures for quantum spin liquid file
193 2022-11-17 16:00    (광학분야 세미나) Ultrastructural and Spectroscopic Studies by Super-Resolution Fluorescence Microscopy
192 2022-11-18 14:30    Kondo cloud condensation in a highly-doped semiconductor metal file
191 2022-11-18 16:00    Qubits, new experimental tools for physics file
190 2022-11-24 16:00    Probing fundamental physics by mapping the mm and sub-mm sky
189 2022-11-25 11:00    [Update 세미나영상](응집물리 세미나) DMFT+ NRG: From models to real materials, from local to nonlocal correlations file
188 2022-12-07 16:00    (광학분야 세미나) Non-Hermitian physics and non-Hermitian singularity
187 2022-12-09 11:00    [Update 세미나영상](응집물리 세미나) Single-shot measurements of strongly-correlated artificial molecular levels in semiconductor quantum dots file
186 2022-12-13 11:00    Art of thin film engineering toward topological quantum computation file
185 2022-12-20 16:00    Studying Baryonic Flow Across the Cosmic Scales Using Radio and Millimeter Wavelength Experiments
184 2022-12-20 16:00    Getting into Biology and Medicine as Physicist
183 2023-01-09 16:00    Non-Hermitian Hopf-bundle Matter. Moon Jip Park (IBS-PCS)
182 2023-01-10 16:00    Terahertz Spectroscopy of Quantum Materials, Jae Hoon Kim (Yonsei University)
181 2023-01-11 11:00    Directly proving magnetoelastic coupling in a soft ferromagnet using Lorentz 4D-STEM file
180 2023-01-11 16:00    Non-abelian anyons and graph gauge theory on a superconducting processor, Eun-Ah Kim (Cornell University/Ewha Womans University)
179 2023-01-12 14:40    JILA 1D Wannier-Stark optical lattice clock file
178 2023-01-12 16:00    Spin wavepackets in the Kagome ferromagnet Fe3Sn2: propagation and precursors
177 2023-02-20 16:00    Physics of ferromagnet/superconductor junctions
176 2023-02-20 17:00    (Optics Seminar) Neural Holography for Next generation Virtual and Augmented Reality Displays file
175 2023-02-27 12:00    2023 봄학기 콜로키움 전체 일정 file