Generation of Vortex N2+ Lasing
Abstract
Harnessing structured light is fascinating for its multi-disciplinary applications, e.g., in remote driving microrobots, sensing, communications, and ultrahigh resolution imaging. Here we experimentally demonstrated the generation of a vortex N2+ lasing pumped by a wavefront structured near-infrared femtosecond pulse with an orbital angular momentum. The topological charge of the new-born N2+ lasing is measured to be twofold that of the pump beam. As compared to the case with pump beam of plane wavefront, the N2+ lasing generation efficiency is much higher for the vortex pump beam at high pumping energy which has a higher clamping intensity by reducing the on-axis plasma density. Our results herald a stirring marching into the territory of remote structured N2+ lasing.
Cite
@article{arxiv.2302.13242,
title = {Generation of Vortex N2+ Lasing},
author = {Yue Hu and Zhengjun Ye and Hanxiao Li and Chenxu Lu and Fei Chen and Jiawei Wang and Shengzhe Pan and Min Zhang and Jian Gao and Jian Wu},
journal= {arXiv preprint arXiv:2302.13242},
year = {2023}
}
Comments
14 pages, 3 figures