| Original Articles |
|
|
|
|
Generation of the Stigmatic Beam with Orbital Angular Momentum |
| GAO Chun-Qing1;WEI Guang-Hui1;Horst WEBER2 |
| 1Optical Engineering Department, Beijing Institute of
Technology, Beijing 100081
2Optical Institute, Technical University Berlin, Strasse des 17 Juni 135, D-10623 Berlin, Germany |
|
| Cite this article: |
|
GAO Chun-Qing, WEI Guang-Hui, Horst WEBER 2001 Chin. Phys. Lett. 18 771-773 |
|
|
|
|
Abstract The stigmatic beam with orbital angular momentum is generated by transforming the Hermite-Gaussian beam of a diode-pumped Nd:YAG laser through a rotated cylindrical optical system. Behind the transformation optics the output beam has an intensity distribution of ring shape and a twist phase. The beam transformation is theoretically calculated and the result has been confirmed in the experiments.
|
| Keywords:
42.60.Jf
42.55.Rz
42.62.Be
|
|
|
Published: 01 June 2001
|
|
| PACS: |
42.60.Jf
|
(Beam characteristics: profile, intensity, and power; spatial pattern formation)
|
| |
42.55.Rz
|
(Doped-insulator lasers and other solid state lasers)
|
| |
42.62.Be
|
(Biological and medical applications)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
