Photonic Sensors, Volume. 6, Issue 3, 249(2016)
Investigation Into the Electromagnetic Impulses From Long-Pulse Laser Illuminating Solid Targets Inside a Laser Facility
Emission of the electromagnetic pulses (EMP) due to laser-target interaction in laser facility had been evaluated using a cone antenna in this work. The microwave in frequencies ranging from several hundreds of MHz to 2 GHz was recorded when long-pulse lasers with several thousands of joules illuminated the solid targets, meanwhile the voltage signals from 1 V to 4 V were captured as functions of laser energy and backlight laser, where the corresponding electric field strengths were obtained by simulating the cone antenna in combination with conducting a mathematical process (Tiknohov Regularization with L curve). All the typical coupled voltage oscillations displayed multiple peaks and had duration of up to 80 ns before decaying into noise and mechanisms of the EMP generation was schematically interpreted in basis of the practical measuring environments. The resultant data were expected to offer basic know-how to achieve inertial confinement fusion.
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Tao YI, Jinwen YANG, Ming YANG, Chuanke WANG, Weiming YANG, Tingshuai LI, Shenye LIU, Shaoen JIANG, Yongkun DING, Shaoqiu XIAO. Investigation Into the Electromagnetic Impulses From Long-Pulse Laser Illuminating Solid Targets Inside a Laser Facility[J]. Photonic Sensors, 2016, 6(3): 249
Category: Regular
Received: May. 20, 2016
Accepted: Jun. 3, 2016
Published Online: Oct. 20, 2016
The Author Email: LI Tingshuai (litingshuai@uestc.edu.cn)