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Please use this identifier to cite or link to this item: http://nbn-resolving.de/urn:nbn:de:hebis:34-2015031347716

Title: Optical amplification and stability of spiroquaterphenyl compounds and blends
Authors: Fuhrmann-Lieker, T.Lambrecht, J.Hoinka, N.Kiurski, M.Wiske, A.Hagelstein, G.Yurttagül, N.Abdel-Awwad, M.Wilke, H.Messow, F.Hillmer, H.Salbeck, J.
???metadata.dc.subject.ddc???: 540 - Chemie (Chemistry and allied sciences)
Issue Date: 2015
Citation: In: Journal of the European Optical Society / Rapid publications. - London, 2015, Vol. 10, 15007, 1-7 pp
Abstract: In this contribution, we present a systematic investigation on a series of spiroquaterphenyl compounds optimised for solid state lasing in the near ultraviolet (UV). Amplified spontaneous emission (ASE) thresholds in the order of 1 μJ/cm2 are obtained in neat (undiluted) films and blends, with emission peaks at 390 1 nm for unsubstituted and meta-substituted quaterphenyls and 400 4 nm for para-ether substituted quaterphenyls. Mixing with a transparent matrix retains a low threshold, shifts the emission to lower wavelengths and allows a better access to modes having their intensity maximum deeper in the film. Chemical design and blending allow an independent tuning of optical and processing properties such as the glass transition.
URI: urn:nbn:de:hebis:34-2015031347716
additional URI: doi:10.2971/jeos.2015.15007OA-GEF
ISSN: 1990-2573
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