Laser Performance of Some Oxazole Laser Dyes in Restricted Matrices

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-te...

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Bibliographic Details
Published in:Journal of fluorescence 2017-07, Vol.27 (4), p.1267-1275
Main Authors: Sakr, Mahmoud A. S., Abdel Gawad, Sayed A., Abou Kana, Maram T. H., Ebeid, El-Zeiny M.
Format: Article
Language:English
Subjects:
Absorption
Absorptivity
Analytical Chemistry
Benzene
Biochemistry
Biological and Medical Physics
Biomedical and Life Sciences
Biomedicine
Biophysics
Biotechnology
Dipole moments
Dyes
Energy consumption
Fluorescence
Glass
Lasers
Lasing
Matrices (mathematics)
Maxima
Nanostructure
Nitrogen
Optical properties
Optical pumping
Original Article
Oxazole
Physical properties
Polyhydroxyethyl methacrylate
Polymethyl methacrylate
Silica gel
Silica glass
Silicon dioxide
Strength
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Summary: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.
ISSN:1053-0509
1573-4994
DOI:10.1007/s10895-017-2058-6