Morphology-dependent resonances in cylindrical microparticles are investigated and the properties of particle matter considered. The spatial structures of resonance modes inside microparticles are studied. It is shown that the resonant mode with a lesser quality factor can have a higher value of internal field intensity inside microparticles. Considering a small amount of absorption of particle matter permits more-or-less exact prediction of the value of the internal field intensity, which may increase or decrease, depending on the properties of the particle matter.
The heating of a laser-irradiated solid aluminum particle to boiling or to temperatures that exceed boiling is analyzed theoretically and numerically by solution of the heat-transport equation. Two different criteria of particle destruction are considered. The temperature distributions inside the particles depending on the intensity values and particle sizes are presented. It is shown that at the start of heating the contribution of heat exchange plays the dominant role, but as the boiling point is approached the contribution of vaporization plays the main role.
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