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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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Publication details

The article was received on 30 Sep 2009, accepted on 14 Dec 2009 and first published on 25 Jan 2010


Article type: Paper
DOI: 10.1039/B920412A
Citation: Lab Chip, 2010,10, 1072-1078
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    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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