TY - JOUR
T1 - Generation of vortex N2+ lasing
AU - Hu, Yue
AU - Ye, Zhengjun
AU - Li, Hanxiao
AU - Lu, Chenxu
AU - Chen, Fei
AU - Wang, Jiawei
AU - Pan, Shengzhe
AU - Zhang, Min
AU - Gao, Jian
AU - Wu, Jian
N1 - Publisher Copyright:
© 2023 Optica Publishing Group.
PY - 2023/6/20
Y1 - 2023/6/20
N2 - Harnessing structured light is fascinating for its multidisciplinary 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-IR femtosecond pulse with orbital angular momentum. The topological charge of theN2+ lasing was measured to be twofold that of the pump beam. Compared to the case with a pump beam of a 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 march toward remote structured N2+ lasing.
AB - Harnessing structured light is fascinating for its multidisciplinary 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-IR femtosecond pulse with orbital angular momentum. The topological charge of theN2+ lasing was measured to be twofold that of the pump beam. Compared to the case with a pump beam of a 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 march toward remote structured N2+ lasing.
UR - https://www.scopus.com/pages/publications/85163792287
U2 - 10.1364/OPTICA.489206
DO - 10.1364/OPTICA.489206
M3 - 文章
AN - SCOPUS:85163792287
SN - 2334-2536
VL - 10
SP - 682
EP - 687
JO - Optica
JF - Optica
IS - 6
ER -