Generation of the stigmatic beam with orbital angular momentum

Authors
Gao, CQ Wei, GH Weber, H
Citation
Cq. Gao et al., Generation of the stigmatic beam with orbital angular momentum, CHIN PHYS L, 18(6), 2001, pp. 771-773
Citations number
7
Categorie Soggetti
Physics
Journal title
CHINESE PHYSICS LETTERS
ISSN journal
0256307X → ACNP
Volume
18
Issue
6
Year of publication
2001
Pages
771 - 773
Database
ISI
SICI code
0256-307X(200106)18:6<771:GOTSBW>2.0.ZU;2-3
Abstract
The stigmatic beam with orbital angular momentum is generated by transformi ng the Hermite-Gaussian beam of a diode-pumped Nd:YAG laser through a rotat ed cylindrical optical system. Behind the transformation optics, the output beam has an intensity distribution of ring shape and a twist phase. The be am transformation is theoretically calculated and the result has been confi rmed in the experiments.