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arXiv · 1612.06033

Visible light emission from a silica microbottle resonator by second and third harmonic generation

Motoki Asano·Shoichi Komori·Rikizo Ikuta·Nobuyuki Imoto·Sahin Kaya Ozdemir·Takashi Yamamoto
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Abstract

We report the first observation of nonlinear harmonic generation and sum frequency generation (SFG) coupled with stimulated Raman scattering (SRS) via the second-order (χ^{(2)}) and the third-order (χ^{(3)}) nonlinearities in a silica microbottle resonator. The visible light emission due to third harmonic generation (THG) was observed in both the output of a tapered fiber and the optical microscope images, which can be used to identify the axial mode profiles. SFG enabled by three- and four-wave mixing processes between the pump light and the light generated via SRS was also observed. Second Harmonic generation (SHG) and the SFG are enabled by χ^{(2)} induced in silica by surface effects and multipole excitations.

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Motoki Asano, Shoichi Komori, Rikizo Ikuta, Nobuyuki Imoto, Sahin Kaya Ozdemir, Takashi Yamamoto. 2016-12-19. Visible light emission from a silica microbottle resonator by second and third harmonic generation. https://doi.org/10.1364/ol.41.005793

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