Du Shengzhe, Wang Tie-Jun, Zhu Zhongbin, Liu Yaoxiang, Chen Na, Zhang Jianhao, Guo Hao, Sun Haiyi, Ju Jingjing, Wang Cheng, Liu Jiansheng, Chin See Leang, Li Ruxin, Xu Zhizhan
State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China.
Centre d'Optique, Photonique et Laser (COPL) and Département de physique, de génie physique et d'optique, Université Laval, Québec, Québec, G1V 0A6, Canada.
Sci Rep. 2018 Sep 10;8(1):13511. doi: 10.1038/s41598-018-31993-3.
We report on a method to experimentally generate ionic wind by coupling an external large electric field with an intense femtosecond laser induced air plasma channel. The measured ionic wind velocity could be as strong as >4 m/s. It could be optimized by increasing the strength of the applied electric field and the volume of the laser induced plasma channel. The experimental observation was qualitatively confirmed by a numerical simulation of spatial distribution of the electric field. The ionic wind can be generated outside a high-voltage geometry, even at remote distances.
我们报告了一种通过将外部强电场与强飞秒激光诱导的空气等离子体通道耦合来实验性地产生离子风的方法。测得的离子风速可达>4米/秒。可以通过增加外加电场的强度和激光诱导等离子体通道的体积来优化它。通过电场空间分布的数值模拟对实验观察结果进行了定性验证。离子风可以在高压结构外部产生，甚至在远距离处也能产生。
