Polar dielectrics exhibit thermoreflectance coefficients rivaling or exceeding metals by an order of magnitude via optical phonon resonances, with a new FOM showing up to 8x better performance and a demonstration on 100 nm SiO2.
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2025 1verdicts
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Infrared Phonon Thermoreflectance in Polar Dielectrics
Polar dielectrics exhibit thermoreflectance coefficients rivaling or exceeding metals by an order of magnitude via optical phonon resonances, with a new FOM showing up to 8x better performance and a demonstration on 100 nm SiO2.