【直播】【香港大学物理系】Quest for Strong Field Physics Research with a ……

直播信息

报告题目

Quest for Strong Field Physics Research with a multi-PW Laser

报告人（单位）

Chang Hee Nam （GIST, Korea）

报告时间

2022年2月9日( 周四) 10:00

主办方

香港大学物理系

直播二维码

报告人介绍

Chang Hee Nam received his Ph. D. in plasma physics from Princeton University in 1988. After workingat Princeton Plasma Physics Laboratory as a staff research physicist until 1989, he joined KoreaAdvanced Institute of Science and Technology (KAIST) as a faculty member and became a fullprofessor in 1998. He started the Coherent X-ray Research Center in 1999 with the funding from theMinistry of Science and Technology through the Creative Research Initiative Program. After finishingthe CXRC program in 2012, he launched the Center for Relativistic Laser Science (CoReLS), a researchcenter of Institute for Basic Science (IBS), for the exploration of relativistic laser-matter interactionsusing femtosecond PW lasers at Gwangju Institute of Science and Technology (GIST). He has receivedseveral awards including the scientist-of-the-month award from the Ministry of Science andTechnology and the award from the National Academy of Science. He was recently awarded an Orderof Science and Technology Merit from the Korean Government. He has served the scientific advisorycommittees of ELI - ALPS in Hungary, ELI-NP in Romania, and also Int. Science and Technology AdvisoryCommittee of ELI-DC. He is a fellow of the American Physical Society and of the Optical Society ofAmerica.

报告摘要

Ever since the Nobel Prize winning invention of the chirped pulse amplification technique in 1985,ultrashort high power lasers have been developed and applied to strong field physics research. AtCenter for Relativistic Laser Science (CoReLS), ultrahigh power lasers have been developed for theinvestigations of relativistic laser-matter interactions, laser-driven charged particle acceleration,laboratory astrophysics, and strong field quantum electrodynamics. CoReLS has upgraded its PW laserbeamline to a 4PW laser in 2017 and achieved the record-breaking laser intensity of 1023 W/cm2in2021. By applying the laser wakefield acceleration, we have produced multi-GeV electrons andused them for exploring nonlinear Compton scattering for the research of strong field quantumelectrodynamics (QED) phenomena, predicted to occur in astrophysical objects, such as supernova,magnetar and black hole. In this presentation, after introducing the basic principle and opticalstructure of the CoReLS PW laser, the strong field research program at CoReLS will be explained.

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编辑：王茹茹

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