title: Visible light emission from a silica microbottle resonator by second- and third-harmonic generation.
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.
authors.forename: M
authors.initials: M
authors.lastname: Asano
authors.forename: S
authors.initials: S
authors.lastname: Komori
authors.forename: R
authors.initials: R
authors.lastname: Ikuta
authors.forename: N
authors.initials: N
authors.lastname: Imoto
authors.forename: Ş K
authors.initials: ŞK
authors.lastname: Özdemir
authors.forename: T
authors.initials: T
authors.lastname: Yamamoto