A Microfluidic Platform Integrated with Tapered Optical Fiber for Studying Resonant Properties of Compact High Index Microspheres

Oleksiy V. Svitelskiy, Yangcheng Li, Misha Sumetsky, David Carnegie, Edik Rafailov, Vasily N. Astratov

Research output: Chapter in Book/Published conference outputConference publication

Abstract

In this work we designed and tested a micro fluidic platform integrated with a tapered fiber for studying resonant properties of a variety of microspheres sizes from 3 μm to 25 μm with different index of refraction from 1.47 to 2.1 in water and air environments. Experiments are performed by reattaching the microspheres along the tapered fibers with the diameter varying from 1 μm to 7 μm. Although the quality factors of whispering gallery modes (WGMs) are usually degraded for compact cavities immersed in liquid due to the reduced index contrasts, we show that this problem can be solved by using cavities made from high index materials. We demonstrated loaded Q-factors approaching ~10 4 for coupling to WGMs in compact (as small as 4 - 5 μm in diameter) barium titanate glass microspheres with refractive indices 1.9 and 2.1. The microfluidic platform developed in this work can be used for studying resonant optical forces exerted on compact microspheres in a liquid as well as for developing compact microsphere resonator sensor devices.
Original languageEnglish
Title of host publication2011 13th International Conference on Transparent Optical Networks
PublisherIEEE
ISBN (Electronic)978-1-4577-0882-4
ISBN (Print)978-1-4577-0881-7
DOIs
Publication statusPublished - 1 Aug 2011
Event2011 13th International Conference on Transparent Optical Networks, ICTON 2011 - Stockholm, Sweden
Duration: 26 Jun 201130 Jun 2011

Publication series

Name2011 13th International Conference on Transparent Optical Networks (Icton)

Conference

Conference2011 13th International Conference on Transparent Optical Networks, ICTON 2011
CountrySweden
CityStockholm
Period26/06/1130/06/11

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