• Corpus ID: 232092501

Resolving resonance effects in the theory of single particle photothermal imaging

@inproceedings{Goldwyn2021ResolvingRE,
  title={Resolving resonance effects in the theory of single particle photothermal imaging},
  author={Harrison J. Goldwyn and Stephan Link and David J. Masiello},
  year={2021}
}
Photothermal spectroscopy and microscopy provides a route to measure the spectral and spatial properties of individual nanoscopic absorbers, independent from scattering, extinction, and emission. The approach relies upon use of two light sources, one that resonantly excites and heats the target and its surrounding environment and a second off-resonant probe that scatters from the resulting volume of thermally modified refractive index. Over the past twenty years, considerable effort has been… 
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Figures and Tables from this paper

Wavelength-Dependent Photothermal Imaging Probes Nanoscale Temperature Differences among Subdiffraction Coupled Plasmonic Nanorods.
TLDR
The optical thermometry of individual gold nanorod trimers that exhibit multiple wavelength-dependent plasmon modes resulting in measurably different local temperature distributions is reported on, demonstrating an all-optical thermometry technique to actively create and measure nanoscale thermal gradients below the diffraction limit.

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