Thermophysical processes initiated by inert-matrix-hosted nanoparticles heated by laser pulses of different durations
A.V. Kalenskii1, A.A. Zvekov2, A.P. Nikitin2, and B.P. Aduev2
1Kemerovo State University, Kemerovo, Russia
2Institute of Coal Chemistry and Material Science SB RAS, Kemerovo, Russia
E-mail: kriger@kemsu.ru; zvekovaa@gmail.com
Keywords: melting, laser radiation, nanoparticles, gold, elements with nonlinear optical properties, pentaerythritol tetranitrate, hyperthermia cancer therapy, optical detonator
Pages: 261–269
Abstract
In the present study, a model for the heating of inert-matrix-hosted metal nano-particles with laser radiation taking into account the melting processes is examined. The calculations were performed using the characteristics of gold and pentaerythritol tetranitrate materials. The kinetic dependences of the temperature and molten-layer thickness on nanoparticle surface were calculated. The main non-dimensional govern-ing parameters of the model were identified. An expression for the maximum thickness of molten layer was obtained. The results can be used in predicting the stability of nonlinear-optics devices with hosted gold nanoparticles, in raising the efficiency of hyperthermia cancer therapy, and in optimizing the optical detonators.
DOI: 10.1134/S086986431602013X
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