Optical amplification and stability of spiroquaterphenyl compounds and blends
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In this contribution, we present a systematic investigation on a series of piroquaterphenyl 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.
@article{urn:nbn:de:hebis:34-2015031347716,
author ={Fuhrmann-Lieker, Thomas and Lambrecht, J. and Hoinka, Nicolai Morten and Kiurski, M. and Wiske, A. and Hagelstein, G. and Yurttagül, N. and Abdel-Awwad, M. and Wilke, H. and Messow, F. and Hillmer, H. and Salbeck, J.},
title ={Optical amplification and stability of spiroquaterphenyl compounds and blends},
copyright ={https://rightsstatements.org/page/InC/1.0/},
language ={en},
year ={2015}
}