Abstract:
Investigations of the influence nanoparticles of gold on the properties of stimulated emission of phenylamine
160 in ethanol were carried out. Au nanoparticle ablation gold targets were obtained in standard second harmonic
solid laser ND. The concentration of the nanoparticles Au was deyermined to change yhe mass of the
target before and after ablation and amounted to 5*10-3 mol/l within 30 minutes ablation. The average size
Au nanoparticles were determined by dynamic light scattering in sub-micron particles size analyzer Zetasizer
Nano ZS. Measurements showed that the investigated wednesday the average size of nanoparticles is 80 nm.
Nanoparticles of gold were obtained by laser ablation of a gold target in ethanol. The concentration of nanoparticles
was determined from the change in the mass of the target before and after ablation. It is established
that when 160 nanoparticles of gold are added to the phenylamine solution, an increase in laser radiation
intensity of 1.4 times and a narrowing of the lasing band is observed 1.5 times. The generation intensity
reaches a maximum value at a concentration of gold nanoparticles CAu = 10-4 mol/l. Given the kinetics
of the luminescence of solutions F160 in ethanol in the presence of gold nanoparticles. It is shown that pulse
generation does not exceed the duration of the pump pulse and is τген~of 7.4 NS. When added to a solution
of gold nanoparticles SAI = 10-4 mol/l there is a reduction of the pulse duration generating τ~6.7 NS.
The threshold for the onset of stimulated emission is reduced by a factor of 2.2. The duration of the generation
pulse decreases 1.1 times.
