TY - GEN
T1 - Metasurfaces with thermal hysteresis
AU - Clemente-Arenas, Mark
AU - Urbina, Julio
AU - Lakhtakia, Akhlesh
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - As temperature cycles between 58 °C and 72 °C, VO2 undergoes a hysteretic transformation between the monoclinic phase and rutile phases, leading to a cyclical change in the complex refractive index that is indicative of semiconductor↔metal transitions. We simulated the visible/near-infrared spectra of the specular reflectance and transmittance of a metasurface incorporating a VO2 sheet and found that the extrema in both spectra blueshift from the cooling to the heating phases at a fixed temperature. This phenomenon is attractive for sensing temporal gradients of temperature.
AB - As temperature cycles between 58 °C and 72 °C, VO2 undergoes a hysteretic transformation between the monoclinic phase and rutile phases, leading to a cyclical change in the complex refractive index that is indicative of semiconductor↔metal transitions. We simulated the visible/near-infrared spectra of the specular reflectance and transmittance of a metasurface incorporating a VO2 sheet and found that the extrema in both spectra blueshift from the cooling to the heating phases at a fixed temperature. This phenomenon is attractive for sensing temporal gradients of temperature.
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U2 - 10.1109/ICEAA.2018.8520495
DO - 10.1109/ICEAA.2018.8520495
M3 - Conference contribution
AN - SCOPUS:85057402449
T3 - Proceedings of the 2018 20th International Conference on Electromagnetics in Advanced Applications, ICEAA 2018
SP - 296
EP - 298
BT - Proceedings of the 2018 20th International Conference on Electromagnetics in Advanced Applications, ICEAA 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 20th International Conference on Electromagnetics in Advanced Applications, ICEAA 2018
Y2 - 10 September 2018 through 14 September 2018
ER -