Rapid heating of matter using high power lasers
2015.11.05 16:39
장소 | E6-2, #1323 |
---|---|
일시 | 2015/11/10, 4PM |
연사 | Dr. Woosuk Bang (Physics division, Los Alamos National Laboratory) |
“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
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
공지 | 2019/09/18 - 12/5 | Seminar Room #1323 | Prof. David Schuster and etc. | Fall 2019: Physics Seminar Serises |
공지 | 2019/09/02 - 12/09 | Seminar Room 1501 | 이호성 박사 (한국표준과학연구원) and etc. | Fall 2019: Physics Colloquium |
201 | 2015/10/16, 3PM | E6-2, 5th fl. #5318 | Dr. Pierre Pugnat , (CNRS-LNCMI) | High Magnetic Fields to Probe the sub-eV range of Particle/Astroparticle Physics - From the OSQAR experiments at CERN up to new perspectives at LNCMI-Grenoble |
200 | Nov. 9 (Fri.), 02:30 PM | E6-2. 1st fl. #1323 | Dr. Pilkyung Moon |
Moiré superlattices – from twisted bilayer graphene to quasicrystal
![]() |
199 | October 15, 5:00pm | https://bit.ly/3ndIiJn | Dr. Samuli Autti |
Time crystals, quasicrystals, and time crystal dynamics in the superfluid universe
![]() |
198 | Jun. 2 (Fri.), 4:00 PM | #1323 (E6-2. 1st fl.) | Dr. Sang Wook Kim |
Maxwell's demon in quantum wonderland
![]() |
197 | 2015/12/03, 4PM | E6-2, #1323 | Dr. Sang-Yun Lee (3rd institute of Physics, University of Stuttgart, Germany) | Hybrid solid state spin qubits in wide bandgap semiconductors |
196 | Mar. 24 (Fri.), 4:00 PM | #1323 (1st fl. E6-2) | Dr. SangWook Lee | Graphene based nano electronics and nano electromechanics; focusing on precise control of nano structures for studying accurate physical properties |
195 | Sep. 29th(Thu), 4PM | E6-2 #1323 (1st floor) | Dr. Sangyoon Han, Department of Physics, KAIST | Large-scale Silicon Photonic MEMS Switches |
194 | 2015/07/15, 2PM | E6-2,1323 | Dr. Se Young Park(Rutgers Univ.) | Electronic and optical properties of titanate-based oxide superlattices |
193 | June 17 (Mon.), 10:30 AM | #1323, E6-2 | Dr. See-Hun Yang |
Chiral Spintronics
![]() |
192 | Apr. 19 (Fri.), 04:00 PM | E6-2. 1st fl. #1323 | Dr. Seok Kyun Son |
Graphene and hBN heterostructures
![]() |
191 | 2016/1/26, 2PM | E6-2, #1323 | Dr. Sergei V. Kalinin (Center for Nanophase Materials Sciences, Oak Ridge National Laboratory) | Electrochemistry on Nano- and Atomic Levels: Scanning Probe Microscopy Meets Deep Data |
190 | Mar. 29 (Fri.), 02:30 PM | E6-2. 1st fl. #1323 | Dr. Seung Hyub Baek |
Epitaxial Multifunctional Oxide Thin Films for Novel Electronics
![]() |
189 | Jun. 01 (Fri.), 11:00 AM | E6-2. 1st fl. #1323 | Dr. Seung Sae Hong |
Topological phases in low-dimensional quantum materials
![]() |
188 | October 29 (Tue.), 4:00pm | #1323 (E6-2, 1st fl.) | Dr. Seung-Joo Lee |
Particles and Gravity via String Geometry
![]() |
187 | Apr. 09 (Mon.), 11:00 AM | E6-2. 1st fl. #1323 | Dr. Seung-Sup B. Lee |
Doublon-holon origin of the subpeaks at the Hubbard band edges
![]() |
186 | October 31 (Thu.), 10:00am | #1323 (E6-2, 1st fl.) | Dr. Seung-Sup Lee |
Kondo meets Hubbard: Impurity physics for correlated lattices
![]() |
185 | February 13th (Thur.), 16:30 PM | E6-6, #119 | Dr. Seyoon Kim(University of Wisconsin-Madison) |
Enhanced Light-Matter Interactions in Graphene with Noble Metal Plasmonic Structures
![]() |
184 | November 20 (Wed.), 4:00 PM | #5302, E6-2 | Dr. Shigeyuki Ishida |
Correlation between superconducting transition temperature and critical current density in irradiated iron-based superconductors
![]() |
183 | November 5 (Tue.), 4:00 PM | #1323, E6-2 | Dr. Shik Shin |
Study on nanomaterials by the development of ultrahigh resolution laser-photoelectron microscopy (PEEM)
![]() |
182 | April 26 (Fri.), 4:00 PM | #1323, E6-2 | Dr. Soonwon Choi |
Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network
![]() |