Abstract

The objective of this paper is to find a more appropriate source term for heat conduction in a nanoparticle subject to ultrashort laser irradiation. Monte Carlo simulation based on Mie's theory is used to investigate the heat source distribution in a single nanoparticle subject to ultrashort laser irradiation. The results show that when the particulate radius is much smaller than the wavelength, the source distribution is similar to that of blackbody sphere. However, if the radius is comparable to or greater than the wavelength, more photons will bypass the particle which makes the source distribution different.

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