Experimental research on impulse coupling effect of multi-pulse laser on aluminum target
The impact pendulum and torsion pendulum are mostly applied in impulse coupling experiments of high energy laser irradiation on space debris. It is difficult to achieve multi-pulse experiment and thus hard to analyze the multi-pulse impulse coupling effect. Here, we designed a new recoil impulse experimental measurement system of non-contact, multi-degree of freedom and multi-pulse irradiation is designed. The system used a low-pressure and low-temperature vacuum chamber to simulate the space environment, the pinning effect of magnetic levitation to achieve aluminum target suspension and high-speed cameras to record the displacement over time to calculate the impulse of target. Then the impulse coupling experiment of multi-pulse laser irradiation on aluminum target was performed. The result shows that the multi-pulse impulse coupling effect is not the linear accumulation of coupling results by every single pulse and mul-ti-pulse coefficient decreases with the increase of the number of pulses, and eventually stabilizes as the decrease getting smaller and smaller.
作者单位：Beijing institute of Tracking and telecommunications technology
Shi Qianqian,Zhang Yan,Wang KunPeng,Wang Chenglin,Zhao Peng. Experimental research on impulse coupling effect of multi-pulse laser on aluminum target[J].Chinese Optics Letters,2018,16(12):12.