激光等离子体强磁环境研究进展  

Recent studies on the strong magnetic environment of laser plasma

作　　者：孙伟 仲佳勇 SUN Wei;ZHONG Jia-Yong(Department of Astronomy, Beijing Normal U niversity, Beijing 100875, China)

机构地区：[1]北京师范大学天文系

出　　处：《物理》2018年第7期446-452,共7页Physics

基　　金：科学挑战专题(批准号:JCKY2016212A505);国家自然科学基金(批准号:11622323);中央高校基本科研业务费专项资金资助项目

摘　　要：高功率强激光技术的发展使得在实验室模拟复杂天体等离子体环境成为可能。近年来在激光等离子体强磁环境下模拟天体物理现象是实验室天体物理研究的一个热点方向,文章简单介绍了利用强激光产生强磁场的各种机制,包括毕尔曼电池效应、线圈靶诱发磁场等,并介绍了在实验室诊断此类磁场的一些常用方法,如法拉第旋转法、质子背光法、B-dot法等。最后介绍该方向几个研究的最新进展,包括磁场压缩、喷流等,同时提出一些在实验室产生强磁场的新思路。The development of high power and intense laser technology has made it possible to simulate complex plasma environments in the laboratory. In recent years, the simulation of astrophysical phenomena in the strong magnetic environment of laser plasma has become a hot topic in the field of laboratory astrophysics. This article will briefly describe various mechanisms that are used to generate a strong magnetic field by intense laser beams, including the Biermann battery effect and coil target induced magnetic fields. Some common methods of diagnosing high magnetic fields in the laboratory, such as the B-dot, proton backlight, and Faraday rotation will be presented. Finally, the latest progress in these studies will be reviewed, including magnetic field compression, jets, and so forth, as well as some new ideas for generating strong magnetic fields in the laboratory.

关 键 词：实验室天体物理 强激光 等离子体 强磁场 

分 类 号：O53[理学—等离子体物理] TN24[理学—物理]