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Efficient Beam Converter for the Generation of Femtosecond Vortices
- Publication Year :
- 2010
-
Abstract
- We describe an optical beam converter for an efficient transformation of Gaussian femtosecond laser beams to single- or double-charge vortex beams showing no spatial or topological charge dispersion. 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.<br />Comment: 9 pages, 4 figures, submitted to Optics Letters 10 March 2010
- Subjects :
- Physics - Optics
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1005.1470
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1364/OL.35.002660