TY - GEN
T1 - Three-dimensional metagratings integrated with liquid-galinstan for surface-enhanced infrared sensing
AU - Zhu, Jiang
AU - Wei, Wei
AU - Chen, Bo
AU - Tang, Ping
AU - Zhao, Xiangyu
AU - Wu, Chongzhao
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - We experimentally demonstrate a high-performance surface-enhanced infrared absorption (SEIRA) sensor based on liquid gallium-indium-tin (Galinstan). The SEIRA sensor incorporates metagratings fabricated by two-photon laser writing. The simulation results indicate two order of magnitude enhancement in electric field intensity compared to the bare substrate. The experimental results show that the enhanced reflectance signal correlates well with the molecular vibrational modes in melamine and substrate temperature. Such SEIRA sensor incorporating the liquid Galinstan with three-dimensional metagratings, provides a novel approach to expanding hot-spot areas and improving the sensing capabilities in a fast, convenient, efficient, and lift-off-free manner.
AB - We experimentally demonstrate a high-performance surface-enhanced infrared absorption (SEIRA) sensor based on liquid gallium-indium-tin (Galinstan). The SEIRA sensor incorporates metagratings fabricated by two-photon laser writing. The simulation results indicate two order of magnitude enhancement in electric field intensity compared to the bare substrate. The experimental results show that the enhanced reflectance signal correlates well with the molecular vibrational modes in melamine and substrate temperature. Such SEIRA sensor incorporating the liquid Galinstan with three-dimensional metagratings, provides a novel approach to expanding hot-spot areas and improving the sensing capabilities in a fast, convenient, efficient, and lift-off-free manner.
UR - http://www.scopus.com/inward/record.url?scp=85207166362&partnerID=8YFLogxK
U2 - 10.1109/IRMMW-THz60956.2024.10697875
DO - 10.1109/IRMMW-THz60956.2024.10697875
M3 - Conference contribution
AN - SCOPUS:85207166362
T3 - International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
BT - 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2024
PB - IEEE Computer Society
T2 - 49th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2024
Y2 - 1 September 2024 through 6 September 2024
ER -