Mid-Infrared Opto-nanofluidic Slot-Waveguide for Label-free On-Chip Chemical Sensing
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A mid-infrared sensor for label-free on-chip chemical detection was developed using an engineered nanofluidic channel consisting of a Si-liquid-Si slot-structure. A sensitivity with 75 times improvement was achieved compared to conventional evanescent-wave sensing.
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Lin, P. T., Kwok, S. W., Lin, H., Singh, V., Kimerling, L. C., Whitesides, G. M., Tan, D., & Agarwal, A.