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Laser Performance of Some Oxazole Laser Dyes in Restricted Matrices

Mahmoud A S Sakr, Sayed A Abdel Gawad, Maram T H Abou Kana, El-Zeiny M Ebeid

J Fluoresc. 2017 Jul;27(4):1267-1275.

PMID: 28286913

Abstract:

This article reports the optical properties such as absorption profile, molar absorptivity, fluorescence profile and photo-physical parameters such as dipole moment, oscillator strength, fluorescence quantum yields, fluorescence lifetimes, laser performance and finally photostability of 2,5-Bis(5-tert-butyl-benzoxazol-2-yl)thiophene (BBOT),1,4-Bis(5-phenyl-2-oxazolyl)benzene (POPOB), 5-diphenyel-oxazole (PPO) laser dyes in different restricted hosts. (BBOT), (POPOB) and (PPO) are embedded in transparent silica-based nanoporous sol-gel glass and copolymer matrix of methyl methacrylate (MMA) and 2-hydroxyethyl methacrylate (HEMA). The absorption and fluorescence properties of these laser dyes in sol-gel glass matrices are compared with their respective properties in copolymer host. In case of sol-gel matrix, all dyes had higher quantum yields as well as lasing wavelength maxima. The laser performances as well as the photostability of these laser dyes in sol-gel glass displayed senior behavior compared with (MMA/ HEMA) copolymer samples upon using nitrogen laser (337.1 nm) as pumping energy.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP1806344 1,4-Bis(5-phenyl-2-oxazolyl)benzene 1,4-Bis(5-phenyl-2-oxazolyl)benzene 1806-34-4 Price
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