Role of rotational coherence in femtosecond-pulse-driven nitrogen ion lasing

22 May 2020 Xie Hongqiang Lei Hongbin Li Guihua Zhang Qian Wang Xiaowei Zhao Jing Chen Zhiming Yao Jinping Cheng Ya Zhao Zengxiu

We experimentally investigated the rotationally resolved polarization characteristics of N$_2^+$ lasing at 391 and 428 nm using a pump-seed scheme. By varying the relative angle between the linear polarizations of the pump and seed, it is found that the polarizations of the P and R branches of 391-nm lasing are counter-rotated... (read more)

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