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Issue 8, 2010
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A reconfigurable optofluidic Michelson interferometer using tunable droplet grating

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Abstract

This paper presents a novel optofluidic Michelson interferometer based on droplet microfluidics used to create a droplet grating. The droplet grating is formed by a stream of plugs in the microchannel with constant refractive index variation. It has a real-time tunability in the grating period through varying the flow rates of the liquids and index variation via different combinations of liquids. The optofluidic Michelson interferometer is highly sensitive and is suitable for the measurement of biomedical and biochemical buffer solutions. The experimental results show that it has a sensitivity of 66.7 nm per refractive index unit (RIU) and a detection range of 0.086 RIU.

Graphical abstract: A reconfigurable optofluidic Michelson interferometer using tunable droplet grating

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Article information


Submitted
30 Sep 2009
Accepted
14 Dec 2009
First published
25 Jan 2010

Lab Chip, 2010,10, 1072-1078
Article type
Paper

A reconfigurable optofluidic Michelson interferometer using tunable droplet grating

L. K. Chin, A. Q. Liu, Y. C. Soh, C. S. Lim and C. L. Lin, Lab Chip, 2010, 10, 1072
DOI: 10.1039/B920412A

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