Enhanced laser-induced plasma channels in air

Zuo Yanlei^{1, 2, 3}, Wei Xiaofeng^{1, 2, 3}, Zhou Kainan^{1, 2, 3}, Zeng Xiaoming^{1, 2, 3}, Su Jingqin^{1, 2, 3}, Jiao Zhihong¹, Xie Na^{1, 2}, Wu Zhaohui^{1, †,}

(a) Density distributions and (b) interferogram of high-density uniform plasma channel (delay = 30 ns, f = 100 mm). In panel (b), E = 150 mJ.