Compact resonant integrated microfluidic refractometer

P. Domachuk

doi:10.1063/1.2181204

2006-03-03

106

PRE

DOI：10.1063/1.2181204

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摘要

En 中文

We introduce a class of highly compact refractometers integrated onto a planar microfluidic geometry that demonstrates high resolution refractive index measurements in 50 mu m fluid channels utilizing a Fabry-Perot cavity formed between resonant Bragg grating reflectors. This cavity forms a resonant peak in the transmission spectrum which is dependent upon the refractive index of the fluid in the microfluidic channel. We demonstrate this class of refractometer using optical fiber Bragg gratings; to provide high resolution, intracavity losses are minimized using integrated collimating optics. The refractometer can resolve refractive index changes of 0.2% and is simulated using coupled mode theory.

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期刊

Applied Physics Letters

IF:

3.6

论文数:

10.4W

被引数:

17.8W

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