Open AccessTunable mid-infrared (63–12 μm)optical vortex pulse generation
Author(s) -
Kenji Furuki,
Michael-Tomoki Horikawa,
Azusa Ogawa,
Katsuhiko Miyamoto,
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.22.026351
Subject(s) - optics , vortex , infrared , optical vortex , pulse (music) , wavelength , laser , materials science , pulse shaping , physics , beam (structure) , detector , thermodynamics
We demonstrated widely tunable mid-infrared (6.3-12 μm) optical vortex pulse generation from a ZGP difference frequency generator pumped by a 2 μm optical vortex laser with a cascaded KTP geometry. The mid-infrared vortex output carried the same topological charge as that of the 1 μm pump output without any destruction. A pulse energy of >135 μJ was obtained in the wavelength region of 6.3-7.0 μm.