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Optical Bound States of 2D High-Contrast Grating for Refractometric Sensing

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Abstract

We report the numerical study of optical bound states in the radiation continuum using a silicon-based 2D high-contrast grating. The results show two distinct bound states at 1549.2 nm and 1743.1 nm. The high-Q resonances present near the bound states are exploited as a label-free biosensor.

© 2016 Optical Society of America

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