A sub-μs thermal time constant electrically driven Pt nanoheater: thermo-dynamic design and frequency characterization.

Metal nanowires can emit coherent polarized thermal radiation, work as uncooled bolometers, and provide localized heating. In this paper, we engineer the temperature dynamics of electrically driven Pt nanoheaters on a silicon-on-insulator substrate. We present three designs and we electrically characterize and model their thermal impedance in the frequency range from 3Hz to 3MHz. Finally, we show a temperature modulation of 300K while consuming less than 5 mW of power, up to a frequency of 1.3 MHz. This result can lead to significant advancements in thermography and absorption spectroscopy. [ABSTRACT FROM AUTHOR]