Visible light emission from a silica microbottle resonator by second- and third-harmonic generation.
Opt Lett
; 41(24): 5793-5796, 2016 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-27973504
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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MEDLINE
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Ano de publicação:
2016
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Article