High-quality Temperature Sensor Based on the Plasmonic Resonant Absorber
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Aiming at the achievement of temperature measurement with high sensitivity in the sub-wavelength scale, an all-metal meta-surface (AMMS)-based sensor is numerically demonstrated. Based on the sharp plasmonic resonances and the simultaneous use of perfect absorption response, temperature sensing with an ultra-high enhancement factor of 263 for the spectral figure of merit (FOM) factor is obtained in comparison with that of the common plasmonic sensors. Moreover, spectral shift-related sensitivity S is up to 0.274 nm/°C. These sensing properties indicate the designed sensor can play a significant role in optoelectronic devices for high-integrated and high signal-to-noise ratio temperature detection.
KeywordsPlasmonic Meta-surface Absorption Temperature sensing
The work was supported by the National Natural Science Foundation of China (Grants 51761015, 11564017, and 11464019), Natural Science Foundation of Jiangxi Province (Grants 20171BAB201016).
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Conflict of Interest
The authors declare that they have no competing interests.
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