Amplified spontaneous emission from a soluble thiophene-based oligomer
- 25 April 2001
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 78 (18) , 2679-2681
- https://doi.org/10.1063/1.1369392
Abstract
Optical gain is demonstrated, through pump-probe measurement, in a spin-coated film of a quinquethiophene-S,S-dioxide. The temporal evolution of the gain as a function of the pump intensity shows a progressive shortening of the lifetime as the pump intensity increases. The photoluminescence spectra show line narrowing for excitation intensity higher than From these measurements, we conclude that oligothiophene-S,S-dioxides are valuable candidates for thin-film organic light amplifier and lasers.
Keywords
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