AI Article Synopsis
- Uncooled infrared thermal detectors are becoming popular because they work at room temperature and are affordable.
- This study introduces a plasmonic optomechanical resonator that enhances long-wave infrared sensing by utilizing mode localization, which focuses energy within the resonator.
- The findings demonstrate an impressive detection sensitivity of 1.304 /mW, marking a significant improvement over previous detection methods and paving the way for better uncooled infrared sensors.
Article Abstract
Uncooled infrared thermal detectors are gaining increasing attention owing to their ability to operate at room-temperature and their low cost. This study proposes a plasmonic optomechanical resonator for ultrasensitive long-wave infrared wave sensing based on mode localization mechanism. The mode-localized effect confines the plasmonic energy in the resonators and induces a significant modal amplitude shift through infrared irradiation, thus achieving highly sensitive detection. The results show that the detection sensitivity can reach 1.304 /mW, which is three-order improvement compared to the frequency-shift sensing metrics. The research provides a new approach to further improve the detection sensitivity of uncooled infrared sensors.
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| http://dx.doi.org/10.1364/OE.509972 | DOI Listing |
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