Abstract
We report on the experimental and theoretical analysis of parametrical optomechanical oscillations in hollow spherical phoxonic whispering gallery mode resonators due to radiation pressure. The optically excited acoustic eigenmodes of the phoxonic cavity oscillate regeneratively leading to parametric oscillation instabilities.
Highlights
MBR are efficient phoxonic cavities that can sustain both photons and phonons, either optical or acoustic[4,5]
The MBR used in this study are thin spherical shells exhibiting parametrical optomechanical oscillations at low excitation threshold that can coexist with nonlinear optical frequency generation such as Stimulated Brillouin Scattering (SBS), four wave mixing (FWM) and frequency combs
Summarizing, we report the observation of parametrical optomechanical oscillations, coexistence of optomechanical parametrical oscillations (OMPO) and nonlinear phenomena, suppression of OMPO, and a detailed modeling of the mechanical oscillations, showing very dense mechanical mode spectra
Summary
MBR are efficient phoxonic cavities that can sustain both photons and phonons, either optical or acoustic[4,5]. The effects of radiation pressure have been studied in different geometrical WGMR: microspheres[9], toroids[10] and solid bottles[11] This effect is due to the motion of the interfaces, whereas in the case of very thick hollow bottles bulk electrostriction plays a fundamental role, exhibiting acoustic phonons with high frequencies, up to tens of GHz in silica[4,12]. The MBR used in this study are thin spherical shells exhibiting parametrical optomechanical oscillations at low excitation threshold that can coexist with nonlinear optical frequency generation such as SBS, four wave mixing (FWM) and frequency combs. Their behavior is very similar to that of toroidal WGMR15: nonlinear phenomena were observed when the cavity was vibrating. Summarizing, we report the observation of parametrical optomechanical oscillations, coexistence of OMPO and nonlinear phenomena, suppression of OMPO, and a detailed modeling of the mechanical oscillations, showing very dense mechanical mode spectra
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
