Light amplification in dye doped polymer films
| Data(s) |
13/07/2010
13/07/2010
09/01/2007
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| Resumo |
We report unusual spectral narrowing and laser emission from polymer thin films doped with Coumarin 540 dye. The laser emission from the polymer films is found to be highly dependent upon the excitation length of the medium. Even a short length of 1.75 mm of the dye doped film gave rise to laser emission with FWHM of 0.3 nm for a pump intensity of 825 kW cm−2. The partial reflections from the broad lateral surfaces of the free standing films provided the optical feedback for the laser emission. Occurrence of well-resolved equally spaced resonant modes confirmed the effect of a Fabry–Perot-like optical cavity between the film surfaces |
| Identificador |
International School of Photonics, Cochin University of Science and Technology J. Opt. A: Pure Appl. Opt. 9 (2007) 174–179 |
| Idioma(s) |
en |
| Publicador |
Journal of Optics A: Pure and Applied Optics, Institute of Physics Publishing |
| Palavras-Chave | #dye doped polymer films #spectral narrowing #resonant modes |
| Tipo |
Working Paper |
