Larger-Than-Unity External Optical Field Confinement Enabled by Metamaterial-Assisted Comb Waveguide for Ultrasensitive Long-Wave Infrared Gas Spectroscopy.
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DOI: 10.1021/acs.nanolett.2c01198
Abstract: Nanophotonic waveguides that implement long optical pathlengths on chips are promising to enable chip-scale gas sensors. Nevertheless, current absorption-based waveguide sensors suffer from weak interactions with analytes, limiting their adoptions in most demanding applications such… read more here.
Keywords: gas; metamaterial assisted; assisted comb; spectroscopy ... See more keywords