Slow-Light Enhanced Second-Harmonic Generation Using a π-Phase Shifted Moiré Grating in a Quasi-Phased-Matched Medium
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)（2021）
Abstract
Slow light is the phenomenon of a large reduction in group velocity, normally due to a material resonance [1] . Slow light causes spatial compression and consequently large field enhancement which has been suggested as a method for increasing nonlinear optical effects. Here we investigate the use of a Moiré grating [2] , [3] for enhancing second-harmonic generation (SHG) in a χ (2) medium.
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Key words
SHG,π-phase shifted Moire grating,χ(2) medium,nonlinear optical effects,field enhancement,spatial compression,material resonance,group velocity,quasiphased-matched medium,slow-light enhanced second-harmonic generation
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