Abstract
The properties of stimulated emission of Ph160 dye in the pores of PAO were studied. The quantum yield of fluorescence was Ff = 0.73. Stimulated emission of Ph160 molecules in the pores of alumina was obtained at the maximum of fluorescence band. The threshold of stimulated emission was 1.7 MW/cm2. It is shown that low-Q generation of stimulated emission in the film Q≥ 1 * 102 relates to the fact that the ray geometry of in the pores is not approximate to the ray geometry for the case of total internal reflection, resulting in the increase of radiative losses. The presence of gold nanoparticles in PAO results in the increase in fluorescence intensity and lowering of the generation threshold of dye stimulated emission.
| Original language | English |
|---|---|
| Pages (from-to) | 216-220 |
| Number of pages | 5 |
| Journal | Journal of Luminescence |
| Volume | 204 |
| DOIs | |
| Publication status | Published - 1 Dec 2018 |
| Externally published | Yes |
Keywords
- Absorption and fluorescence spectra
- Dye 6-Amino-1H-phenalen-1-one (Ph160)
- Fluorescence kinetics
- Gold nanoparticles (AuNPs)
- Plasmon resonance
- Porous aluminum oxide (PAO)
- Q-factor of the resonator
- Stimulated emission
- Stimulated emission threshold
ASJC Scopus subject areas
- Biophysics
- Atomic and Molecular Physics, and Optics
- Chemistry(all)
- Biochemistry
- Condensed Matter Physics