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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sumetsky, Misha
Aston University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2020Whispering Gallery Resonators Introduced by Wet Chemical Etching at the Optical Fiber Surface
- 2019Optical bottle microresonatorscitations
- 2015Kerr nonlinear switching in a hybrid silicasilicon microspherical resonatorcitations
- 2013Delay of light in an optical bottle resonator with nanoscale radius variationcitations
- 2013Delay of light in an optical bottle resonator with nanoscale radius variation:dispersionless, broadband, and low-loss
- 2011Fiber coupling to BaTiO3 glass microspheres in an aqueous environmentcitations
- 2011A Microfluidic Platform Integrated with Tapered Optical Fiber for Studying Resonant Properties of Compact High Index Microspherescitations
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document
A Microfluidic Platform Integrated with Tapered Optical Fiber for Studying Resonant Properties of Compact High Index Microspheres
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.