21 April 2017 Complete linear optical isolation at the microscale with ultralow loss (Conference Presentation)
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Abstract
Microscale resonators that simultaneously exhibit high-Q optical and mechanical resonances are routinely used to study the coupling between light and vibration. We have learned recently that Brillouin scattering (traveling-wave light-sound interactions) within these resonators can enable nonreciprocal optical transmission through a waveguide, which can be reconfigured optically and on demand. In this talk, we describe the basic theory and experimental demonstrations of Brillouin Optomechanics, and describe how it allows the breaking of time-reversal symmetry by means of traveling phonon modes. We experimentally demonstrate ultra-low loss optical isolation using a simple resonator system. Our results demonstrate that chip-scale optical isolation is much more accessible than previously thought.
Conference Presentation
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Seunghwi Kim, Seunghwi Kim, JunHwan Kim, JunHwan Kim, Gaurav Bahl, Gaurav Bahl, "Complete linear optical isolation at the microscale with ultralow loss (Conference Presentation)", Proc. SPIE 10090, Laser Resonators, Microresonators, and Beam Control XIX, 100900S (21 April 2017); doi: 10.1117/12.2253544; https://doi.org/10.1117/12.2253544
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