Heat Dissipation of Metal Nanoparticles in the Dipole Approximation
| Autor: | Pietro Giuseppe Gucciardi, Marc Lamy de la Chapelle, Florent Colas, Raymond Gillibert |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Condensed matter physics Biophysics Nanoparticle 02 engineering and technology Dipolar field Thermal management of electronic devices and systems Discrete dipole approximation 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry 010309 optics Dipole Heat generation 0103 physical sciences Irradiation 0210 nano-technology Metal nanoparticles Biotechnology |
| Zdroj: | Plasmonics. 15:1001-1005 |
| ISSN: | 1557-1963 1557-1955 |
| Popis: | The dipolar approximation model that describes the heat delivered by a nanoparticle under continuous light irradiation provides a relation in which the dissipated power is proportional to the extinction cross-section. This relation works fairly well for small particles in which all the energy is absorbed, but fails for larger structures due to the non-negligible power scattered in the free space that does not contribute to heat generation. Here we show that, if we consider the light-induced dipolar field in the calculation of the dissipated power, we recover the proportionality with the absorption cross-section of the nanoparticle. |
| Databáze: | OpenAIRE |
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