The heat transfer in a water droplet with eosin and ablative silver nanoparticles under laser visible stationary (λ = 532 nm) and infrared pulsed (λ = 10.6 μm) exposure (Vis-IR double laser exposure) in the temperature range from 0.2 to 50 ° C was studied. It was found that after Vis-IR exposure, the vibrational system of triplet states of dye molecules in the droplet was excited with the generation of thermoluminescence, the decay kinetics of which reflects the new distribution of the electron-vibrational modes in the fluorescence spectrum of dye molecules. For small droplet sizes with silver nanoparticles (d <1.0 mm) after infrared exposure (τ = 50 ms), a thermal front was generated with thermoluminescence radiation and it was travelling at a speed of 0.85 cm / s in an aqueous medium. The simulation study of heat transfer processes in a drop during the formation of a heat wave was carried out.

The supercontinuum generation in water droplets with nanoparticles of citrate silver in the temperature range of 2–22 °C, as well as in the ice droplets frozen to −15.0 °C, has been studied. It was found that the intensity of the supercontinuum emission under the excitation by a train of femtosecond laser pulses exponentially decays along the droplet diameter and it increases linearly with increasing NP concentration. The emission spectrum of supercontinuum in water droplet with NPs and the generation of localized plasmons with fluorescence at the 430 nm wavelength was studied. The movement of a heat wave along the diameter of a small frozen drop with a speed of 190 mm / s accompanying exponentially decaying supercontinuum radiation was recorded. The modeling of heat transfer processes in the frozen droplet during the formation of a heat wave has been carried out.