Interaction of Two Counterpropagating Laser Beams with Vacuum
Interaction of Two Counterpropagating Laser Beams with Vacuum
复制标题
两束反向传播激光束与真空的相互作用
DOI：
10.1103/physreva.86.033810
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发表时间：
2012
影响因子：
2.9
通讯作者：
Yuichiro Monden
中科院分区：
文献类型：
--
作者：
Ryosuke Nakashima;Keisuke Sakurai;Seiii Yamasaki;Katsuhiko Hayashi;Chikahiro Nagata;Kazuki Hoshino;Yoshikuni Onodera;Kunihiko Nishino and Akihito Yamaguchi;Yuichiro Monden
本文研究了远低于Schwinger极限的电磁场强度下两束反向传播的聚焦激光束与真空的相互作用。与单光束的情况不同，与两个激光束相互作用的真空中的偏振和磁化主要由平行于入射激光的电磁场的电磁场分量产生。这导致产生比单个光束大得多的极化和磁化。当使用反向传播光束时，从真空辐射的光子数比使用相同激光功率的单光束时高出3个数量级以上。
We have investigated the interaction of two counterpropagating focused laser beams with vacuum at electro-magnetic-field strengths far below the Schwinger limit. Unlike the case of a single beam, the polarization and magnetization in vacuum that interacts with the two laser beams are mainly generated by electro-magnetic-field components parallel to the electromagnetic field of the incident laser light. This results in much greater polarization and magnetization being generated than for a single beam. The number of photons radiated from a vacuum when counterpropagating beams were used was more than 3 orders of magnitude higher than when a single beam was used for the same laser power.