Open AccessUltraviolet vortex generation using periodically bonded β-BaB_2O_4 device
Author(s) -
Yuta Sasaki,
Mio Koyama,
Katsuhiko Miyamoto,
Yoshimi Ariga,
Tomomi Onda,
Ichiro Shoji,
Takashige Omatsu
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.012829
Subject(s) - optics , ultraviolet , nanosecond , optical vortex , materials science , vortex , laser , optoelectronics , physics , beam (structure) , thermodynamics
This paper describes the first demonstration of ultraviolet (266nm) vortex generation using the combination of a frequency-doubled nanosecond green laser, a spiral phase plate, and a periodically bonded β-BaB2O4 device. For a laser pumping energy of 9.1 mJ, an ultraviolet vortex energy of 1.24 mJ was obtained, corresponding to a conversion efficiency of 13.7%.