Generation of vortex N 2 + lasing

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 N 2 + lasing pumped by a wavefront structured near-IR fem...

Full description

Saved in:
Bibliographic Details
Published in:Optica 2023-06, Vol.10 (6), p.682
Main Authors: Hu, Yue, Ye, Zhengjun, Li, Hanxiao, Lu, Chenxu, Chen, Fei, Wang, Jiawei, Pan, Shengzhe, Zhang, Min, Gao, Jian, Wu, Jian
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 N 2 + lasing pumped by a wavefront structured near-IR femtosecond pulse with orbital angular momentum. The topological charge of the N 2 + lasing was measured to be twofold that of the pump beam. Compared to the case with a pump beam of a plane wavefront, the N 2 + 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 N 2 + lasing.
ISSN:2334-2536
2334-2536
DOI:10.1364/OPTICA.489206