Generation of amplified spontaneous emission from rare-earth complexes dispersed in phenol + AOT self-assembled organogels

Abstract

The rare-earth complex Eu(hfa)3(phen) is dispersed in the self-assembled organogel of p-chlorophenol and surfactant AOT. The time profiles of the emission intensity observed from the complex–organogel system suggest the possible generation of amplified stimulated emission when excited with a strong excitation pulse. As the host material, the organogel can support eight times as much of the complex along with better emission quantum yield. A theoretical estimation of the laser gain factor of the complex–organogel also suggested that this system might have application in laser systems.