Group-velocity-mismatch compensation in cascaded third-harmonic generation with two-dimensional quasi-phase-matching gratings |
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| Authors: | Fujioka Nobuhide Ashihara Satoshi Ono Hidenobu Shimura Tsutomu Kuroda Kazuo |
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| Affiliation: | Institute of Industrial Science, The University of Tokyo, Japan. fujioka@iis.u-tokyo.ac.jp |
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| Abstract: | A novel scheme to achieve broadband cascaded third-harmonic generation by use of two-dimensional quasi-phase-matching gratings is proposed. Intrinsic group-velocity mismatch is compensated by the pulse front tilt in noncollinear interaction geometry. The presented scheme enables broadband third-harmonic generation in a single device of long interaction length, which reduces the operation intensity dramatically. |
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