太赫兹科学与电子信息学报2016，Vol.14Issue(6)：905-909,5.DOI:10.11805/TKYDA201606.0905
神光-Ⅲ原型高功率激光装置电磁脉冲辐射
Investigation of electromagnetic pulse emission from Shenguang high power laser facilities
摘要
Abstract
Electromagnetic pulse emission of Shenguang-III prototype laser facilities from pulse-laser-irradiated metallic target is evaluated by using B-dot. An electric signal lasting for about 60ns is detected in the experiment, with radiated field up to 3 kV/m and frequency bins for 0.1GHz-2 GHz which has an obvious peak at 160 MHz. The results demonstrate that the model of dipole radiation is one of the major mechanisms of electromagnetic pulse emission from laser-target interaction. The dipole radiation model can produce about 105 W, 160 MHz central frequency electromagnetic pulse with an energy conversion efficiency of 10-6 according to the calculation, and the electric field of antenna position is about 2 kV/m. This experiment evaluates the electromagnetic pulse emission from pulse-laser-irradiated metallic target on Shenguang-III prototype laser facilities, which is of great significance for shielding electromagnetic disturbance of diagnostics on large laser facilities. Moreover, investigation of electromagnetic pulse emission may have many potential applications.关键词
激光等离子体相互作用/电磁脉冲/天线/偶极辐射Key words
laser-target interaction/electromagnetic pulse/antenna/dipole radiation分类
信息技术与安全科学引用本文复制引用
杨为明,王传珂,易涛,李廷帅,高崇信,王锐,张健,王保清,刘慎业..神光-Ⅲ原型高功率激光装置电磁脉冲辐射[J].太赫兹科学与电子信息学报,2016,14(6):905-909,5.基金项目
国家自然科学基金资助项目(11105129) （11105129）
中国工程物理研究院科学技术发展基金资助项目(2014B0102011 （）
2014B0102012) （）
