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arXiv · 1502.01819

Coupled-mode induced transparency in aerostatically-tuned microbubble whispering gallery resonators

Yong Yang·Sunny Saurabh·Jonathan Ward·Síle Nic Chormaic
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Abstract

Coupled-mode induced transparency is realized in a single microbubble whispering gallery mode resonator. Using aerostatic tuning, we find that the pressure induced shifting rates are different for different radial order modes. A finite element simulation considering both the strain and stress effects shows a GHz/bar difference and this is confirmed by experiments. A transparency spectrum is obtained when a first order mode shifts across a higher order mode through precise pressure tuning. The resulting lineshapes are fitted with the theory. This work lays a foundation for future applications in microbubble sensing.

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Yong Yang, Sunny Saurabh, Jonathan Ward, Síle Nic Chormaic. 2015-02-06. Coupled-mode induced transparency in aerostatically-tuned microbubble whispering gallery resonators. https://doi.org/10.1364/ol.40.001834

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