Publication

Spatiotemporal Quasi-Phase-Matching in Microresonators

Camille Sophie Brès, Jianqi Hu, Edgars Nitiss, Marco Clementi, Ozan Yakar, Ji Zhou
2024

Abstract

We show how spatiotemporal quasi-phase-matching emerges from all-optical poling of silicon nitride microresonators. Enabled by the coherent photogalvanic effect, the photoinduced χ(2) grating oscillates in space and time, yielding quasi-phase-matched and Doppler-shifted second-harmonic generation.

Official source

https://infoscience.epfl.ch/entities/publication/1cfc7532-a52a-4afc-aa31-586669e82462

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Spatiotemporal Quasi-Phase-Matching in Microresonators

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