Opto-mechanics with surface acoustic wave whispering gallery modes
A. B. Matsko, A. A. Savchenkov, V. S. Ilchenko, D. Seidel, and L., Maleki
TL;DR
This paper demonstrates the creation of high-quality surface acoustic wave whispering gallery modes in optical resonators and explores their potential for efficient, controllable opto-mechanical interactions useful in sensor technology.
Contribution
It introduces a novel surface acoustic wave WGM in optical resonators and shows how to achieve efficient triply-resonant opto-mechanical interactions.
Findings
High-Q surface acoustic wave WGMs can be generated in optical resonators.
Efficient triply-resonant opto-mechanical interactions are achievable.
Potential applications in advanced sensor technologies.
Abstract
A surface acoustic wave (SAW) creates its own high-Q ultra-small volume whispering gallery modes (WGMs), different from usual bulk acoustic WGMs, in an optical dielectric WGM resonator. We show that it is possible to realize an externally controllable, efficient triply-resonant opto-mechanical interaction between two optical WGMs and the SAW WGM and to use such an interaction in various sensor applications.
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