Generation of the Stigmatic Beam with Orbital Angular Momentum

Chin. Phys. Lett.

2001, Vol. 18

Issue (6): 771-773 DOI:

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

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GAO Chun-Qing, WEI Guang-Hui, Horst WEBER 2001 Chin. Phys. Lett. 18 771-773

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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)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2001/V18/I6/0771

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