Efficient beam converter for the generation of high-power femtosecond vortices

Vladlen G. Shvedov; Cyril Hnatovsky; Wieslaw Krolikowski; Andrei V. Rode

doi:10.1364/OL.35.002660

Efficient beam converter for the generation of high-power femtosecond vortices

Vladlen G. Shvedov, Cyril Hnatovsky, Wieslaw Krolikowski, Andrei V. Rode

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

Abstract

We describe an optical beam converter for an efficient transformation of Gaussian femtosecond laser beams to single- or double-charge vortex beams. The device achieves a conversion efficiency of 75% for single- and 50% for double-charge vortex beams and can operate with high-energy broad bandwidth pulses. We also show that the topological charge of a femtosecond vortex beam can be determined by analyzing its intensity distribution in the focal area of a cylindrical lens.

Original language	English
Pages (from-to)	2660-2662
Number of pages	3
Journal	Optics Letters
Volume	35
Issue number	15
DOIs	https://doi.org/10.1364/OL.35.002660
Publication status	Published - 1 Aug 2010

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abstract = "We describe an optical beam converter for an efficient transformation of Gaussian femtosecond laser beams to single- or double-charge vortex beams. The device achieves a conversion efficiency of 75% for single- and 50% for double-charge vortex beams and can operate with high-energy broad bandwidth pulses. We also show that the topological charge of a femtosecond vortex beam can be determined by analyzing its intensity distribution in the focal area of a cylindrical lens.",

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AU - Shvedov, Vladlen G.

AU - Hnatovsky, Cyril

AU - Krolikowski, Wieslaw

AU - Rode, Andrei V.

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N2 - We describe an optical beam converter for an efficient transformation of Gaussian femtosecond laser beams to single- or double-charge vortex beams. The device achieves a conversion efficiency of 75% for single- and 50% for double-charge vortex beams and can operate with high-energy broad bandwidth pulses. We also show that the topological charge of a femtosecond vortex beam can be determined by analyzing its intensity distribution in the focal area of a cylindrical lens.

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Efficient beam converter for the generation of high-power femtosecond vortices

Abstract

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