Interaction between gigawatt laser pulses and liquid media: Part 1. Explosive boiling of large individual water droplets

Improved calculation of the Mie solution and the geometrical optics approximation for large droplets

“…Meanwhile, this information is important for practical applications [22,[36][37][38][39]. We hope that our present study will be useful for understanding the problems, where subtle effects induce grandiose consequences and must be taken into account to interpret the observed patterns, such as the interaction of laser radiation with aerosols [40], lasing by droplets [41][42][43][44][45][46][47], the ablation of water droplets [48,49], the use of fuel in the droplet form [50], and even laser-induced thermonuclear fusion [51]. Thus, the motivation for theoretical and numerical studies remains high.…”

Interaction of GW laser pulses with liquid media. Part 2. Spectral and angular characteristics of scattering by millimeter water droplets

“…In our previous papers [9,10], the results of the first comprehensive Russian experiments on the interac tion of high power ultrashort laser pulses with con densed media, carried out in the joint laboratory of IACP FEB RAS and FEFU in collaboration with IAO SB RAS, have been presented. In particular, the dynamics of explosive destruction and emission spec tra of suspended millimeter sized water droplets, irra diated by gigawatt radiation of a femtosecond Ti:Sap phire, laser have been investigated.…”

“…The experimental setup is described in detail in [9]. It includes a laser radiation source, assembled using chirped pulse amplification (CPA) based on a Ti:Sap phire crystal, and working in a pulse frequency regime with the following pulse parameters: the central wave length of the radiation is = 800 nm, the spectrum width is 35 nm, the pulse energy is up to 0.9 mJ, the pulse duration is about 40 fs with a Gaussian time dependence, and the pulse repetition rate is 1 kHz.…”

Theoretical description of the spectrum of emission of a droplet of ethanol solution of rhodamine 6G under femtosecond laser irradiation

“…How ever, it is required to set up the most complete corre spondence between the mathematical model sug gested for superfluorescence in [3] and the experimental data [2] in the context of the necessity of further theoretical study caused particularly by a recent series of the related experiments [15,16]. In this work, we present the numerical solution of the equa tions for light field spectral density and populations of the energy levels of fluorophore molecules in an etha nol droplet excited by a femtosecond laser pulse.…”