Optofluidic microchannels in aerogel

Limin Xiao; Timothy A Birks

doi:10.1364/OL.36.003275

Optofluidic microchannels in aerogel

Limin Xiao, Timothy A Birks

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Abstract

We report optofluidic waveguides made by filling microchannels in aerogel with water. The aerogel cladding is a nanoporous material with an extremely low refractive index of similar to 1.05, giving a large index step from the water core. Channels were formed by removing embedded optical fibers, which could be nonuniform or multiple. The porosity of the aerogel allowed air to be displaced from the channel, preventing the trapping of bubbles. The attenuation of red light in the highly multimode water core waveguide was no greater than 1.5 dB/cm.

Original language	English
Pages (from-to)	3275-3277
Number of pages	3
Journal	Optics Letters
Volume	36
Issue number	16
DOIs	https://doi.org/10.1364/OL.36.003275
Publication status	Published - 15 Aug 2011

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This paper was published in [Journal Name] and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.36.003275 . Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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abstract = "We report optofluidic waveguides made by filling microchannels in aerogel with water. The aerogel cladding is a nanoporous material with an extremely low refractive index of similar to 1.05, giving a large index step from the water core. Channels were formed by removing embedded optical fibers, which could be nonuniform or multiple. The porosity of the aerogel allowed air to be displaced from the channel, preventing the trapping of bubbles. The attenuation of red light in the highly multimode water core waveguide was no greater than 1.5 dB/cm.",

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Optofluidic microchannels in aerogel

Abstract

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