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Fabrication and Testing of Photonic Thermometers
Published on: October 24, 2018
Gold nanocrescents for remotely measuring and controlling local temperature
Xuan Hoa Vu1, Michael Levy, Thomas Barroca
1Institut Langevin, ESPCI ParisTech, CNRS UMR 7587 & INSERM ERL U979, 1 rue Jussieu, F-75238 Paris Cedex 05, France.
Abstract:
We present a novel technique to remotely measure and control the local temperature within a medium. This technique is based on the observation of the rotational Brownian motion of gold nanocrescent particles, which possess a strong anisotropic light interaction due to their plasmonic properties. Rotational scattering correlation spectroscopy performed on a single nanoparticle is able to determine the local temperature with high accuracy. These nano-thermometers can simultaneously play the role of nano-heaters when absorbing the light of a focused laser beam.
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