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Issue 13, 2012
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Methods to array photonic crystal microcavities for high throughput high sensitivity biosensing on a silicon-chip based platform

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Abstract

We experimentally demonstrate a method to create large-scale chip-integrated photonic crystal sensor microarrays by combining the optical power splitting characteristics of multi-mode interference (MMI) power splitters and transmission drop resonance characteristics of multiple photonic crystal microcavities arrayed along the length of the same photonic crystal waveguide. L13 photonic crystal microcavities are employed which show high Q values (∼9300) in the bio-ambient phosphate buffered saline (PBS) as well as high sensitivity, experimentally demonstrated to ∼98 atto-grams. Two different probe antibodies were specifically detected simultaneously with a control sample, in the same experiment.

Graphical abstract: Methods to array photonic crystal microcavities for high throughput high sensitivity biosensing on a silicon-chip based platform

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Publication details

The article was received on 19 Jan 2012, accepted on 13 Mar 2012 and first published on 20 Mar 2012


Article type: Technical Innovation
DOI: 10.1039/C2LC40081B
Citation: Lab Chip, 2012,12, 2309-2312
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    Methods to array photonic crystal microcavities for high throughput high sensitivity biosensing on a silicon-chip based platform

    Y. Zou, S. Chakravarty, W. Lai, C. Lin and R. T. Chen, Lab Chip, 2012, 12, 2309
    DOI: 10.1039/C2LC40081B

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