Influence of plasmon resonance in silver nanoparticles on the properties of stimulated emission of 1,3,5,7,8-pentamethyl-2,6-diethylpyrromethene-difluoroborate molecules in film of porous aluminum oxide

• Published in: Optics and laser technology Vol. 115; pp. 246 - 250
• Main Authors: Ibrayev, N. Kh, Aimukhanov, A.K.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01-07-2019; Elsevier BV
• Subjects: 1,3,5,7,8-pentamethyl-2; 6-diethylpyrromethene-difluoroborate molecules; absorption and fluorescence spectra; Aluminum; Aluminum oxide; Dyes; Fluorescence; fluorescence kinetics; Nanoparticles; plasmon resonance; Porosity; porous aluminium oxide film; Silver; silver nanoparticles; Stimulated emission; stimulated emission threshold; 1,3,5,7,8-pentamethyl-2; porous aluminium oxide film; stimulated emission threshold; silver nanoparticles; plasmon resonance; fluorescence kinetics; absorption and fluorescence spectra; 6-diethylpyrromethene-difluoroborate molecules; stimulated emission
• ISSN: 0030-3992; 1879-2545
• DOI: 10.1016/j.optlastec.2019.02.040

•Films of porous alumina were synthesized under conditions including two stages of anodizing. Synthesis of silver nanoparticles in porous aluminium oxide was carried out based on the reduction of the ammonium complex of silver by formic acid.•It was established that the fluorescence intensity of the dye increases to a concentration of silver nanoparticles of CAg = 0.42 * 10−7 mol, and a further increase in the concentration of nanoparticles leads to the quenching of the fluorescence intensity.•Plasmon resonance in silver nanoparticles in a film of porous alumina reduces the decay kinetic of fluorescence by a factor of 1.5.•Plasmon resonance in silver nanoparticles reduces the threshold of stimulated emission of dye in film of porous aluminum oxide 1.4 times, and the PCE of generation increases to a value of 0.4%.•The results obtained demonstrate the potential possibility of using films of porous alumina doped with laser dyes and metal nanoparticles as active elements of tunable dye lasers with a low pumping threshold.
The properties of stimulated emission of 1,3,5,7,8-pentamethyl-2,6-diethylpyrromethene-difluoroborate molecules in the film of porous aluminum oxide with were studied. It was established that the fluorescence intensity of the dye increases to a concentration of silver nanoparticles of CAg = 0.42 * 10−7 mol, and a further increase in the concentration of nanoparticles leads to the quenching of the fluorescence intensity. Plasmon resonance in silver nanoparticles in a film of porous alumina reduces the decay kinetic of fluorescence by a factor of 1.5. Stimulated emission of the fluorescence of the dye in the porosity film was detected at the short-wave maximum of the fluorescence band. It was established that the plasmon resonance in silver nanoparticles reduces the threshold of stimulated emission of a dye in a film of porous aluminum oxide 1.4 times, and the PCE of generation increases to a value of 0.4%.