Two-dimensional domain structures in lithium niobate via domain inversion with ultrafast light
Date
Authors
Chen, Xin
Karpinski, Pawel
Shvedov, Vladlen
Krolikowski, Wieslaw
Sheng, Yan
Wang, B
Trull, Jose
Cojocaru, Crina
Boes, Andreas
Mitchell, A.
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Photonics Society of Poland
Abstract
Periodic inversion of ferroelectric domains is realized in a
lithium niobate crystal by focused femtosecond near-infrared laser
beam. One and two-dimensional domain patterns are fabricated. Quasiphase matched frequency doubling of 815nm light is demonstrated in a channel waveguide with an inscribed periodic domain pattern with
conversion efficiency as high as 17.45%.
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Photonics Letters of Poland
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