The laser generation threshold characteristics of a colloidal solution of gold and platinum nanoparticles with rodamine 6G

In the work the spectral-energy characteristics of stochastic (non-resonator) laser generation of a thin layer of organic dye Rhodamine 6G solution with the addition of gold and platinum nanoparticles in the form of a colloidal solution in ethanol have been experimentally investigated. It has been experimentally established that the generation thresholds are reduced by two orders when adding nanoparticles to the active medium. It is shown that the use of nanoparticles having a plasmon absorption band in the region of the agitation radiation does not lead to a significant change of the active medium generation thresholds.