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High-performance refractometric nanosensor using circular plasmonic interferometer arrays

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We report novel circular plasmonic interferomers for refractometric sensing with detection limit of 8.7×10−7 RIU using a multispectral sensing method. The efficient light suppression through destructive interference also allows low-background intensity-based detection with FOM* exceeding 140.

© 2013 Optical Society of America

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