Paper
18 April 2017 High average power ultraviolet picosecond optical vortex generation
Yuta Sasaki, Maya Kowa, Koki Yamaguchi, Jun Shibakawa, Katsuhiko Miyamoto, Takashige Omatsu
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Abstract
We reported on high average power ultraviolet (UV) picosecond optical vortex generation without any spatial separation of the phase singularity due to the walk-off effect by employing a pair of β-BaB2O4 and reversed β-BaB2O4 crystals. The UV vortex output power was measured to be 1.76 W, corresponding to the optical-optical conversion efficiency of 17 %.
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Yuta Sasaki, Maya Kowa, Koki Yamaguchi, Jun Shibakawa, Katsuhiko Miyamoto, and Takashige Omatsu "High average power ultraviolet picosecond optical vortex generation", Proc. SPIE 10252, Optical Manipulation Conference, 102520E (18 April 2017); https://doi.org/10.1117/12.2275226
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KEYWORDS
Ultraviolet radiation

Optical vortices

Picosecond phenomena

Spiral phase plates

Crystals

Laser crystals

Nonlinear crystals

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