Characterization of high index microsphere resonators in fiber-integrated microfluidic platforms

Oleksiy Svitelskiy; Dongning Sun; Arash Darafsheh; Mikhail Sumetsky; Anatoly Lupu; Maria Tchernycheva; Vasily N. Astratov

doi:10.1117/12.876126

21 February 2011 Characterization of high index microsphere resonators in fiber-integrated microfluidic platforms

Oleksiy Svitelskiy, Dongning Sun, Arash Darafsheh, Mikhail Sumetsky, Anatoly Lupu, Maria Tchernycheva, Vasily N. Astratov

Author Affiliations +

Proceedings Volume 7913, Laser Resonators and Beam Control XIII; 791314 (2011) https://doi.org/10.1117/12.876126
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

We investigate high-Q microsphere resonators with whispering gallery modes using a tapered optical microfiber immersed in a liquid inside a microfluidic platform. The strength of the coupling between the cavity and the microfiber taper is shown to depend on the contact position of the microsphere along the taper and on the refractive index contrast between the microsphere and the liquid environment. We demonstrate that barium titanate glass beads with index around 1.9 are promising candidates for developing sensor and optomechanical applications of such resonator systems.

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Oleksiy Svitelskiy, Dongning Sun, Arash Darafsheh, Mikhail Sumetsky, Anatoly Lupu, Maria Tchernycheva, and Vasily N. Astratov "Characterization of high index microsphere resonators in fiber-integrated microfluidic platforms", Proc. SPIE 7913, Laser Resonators and Beam Control XIII, 791314 (21 February 2011); https://doi.org/10.1117/12.876126

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