Bulletin of the American Physical Society
75th Annual Gaseous Electronics Conference
Volume 67, Number 9
Monday–Friday, October 3–7, 2022;
Sendai International Center, Sendai, Japan
The session times in this program are intended for Japan Standard Time zone in Tokyo, Japan (GMT+9)
Session DF2: Laser Diagnostics II
10:00 AM–12:00 PM,
Friday, October 7, 2022
Sendai International Center
Room: Tachibana
Chair: Uwe Czarnetzki, Ruhr University Bochum, Germany
Abstract: DF2.00005 : Investigation of the early-stage dynamics of laser-produced plasma using collective Thomson scattering*
11:15 AM–11:30 AM
Presenter:
Yiming Pan
(Kyushu Univ)
Authors:
Yiming Pan
(Kyushu Univ)
Kentaro Tomita
(Hokkaido Univ.)
Atsushi Sunahara
(Purdue University)
Katsunobu Nishihara
(Osaka Univ.)
Spatial-resolved results show LPP is nearly isothermal during the ablation pulse. Investigations on velocity reveal LPP expands predominantly perpendicular to the surface, in which direction the drift velocity increase linearly with distance. Importantly, LPP has a considerable initial velocity at the target surface, approximately the sound speed derived from the local Te. Our results suggest the self-similar isothermal model can better describe the LPP behavior in this initial time than the adiabatic ones. In this scenario, a structure that transport thermal energy by electron conduction should exist, between the cutoff density and ablation front.
*This work was supported by JSPS KAKENHI Grant Number 20H01880.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700