Academic Journals Database
Disseminating quality controlled scientific knowledge

Detection of Random Laser Action from Silica Xerogel Matrices Containing Rhodamine 610 Dye and Titanium Dioxide Nanoparticles

ADD TO MY LIST
 
Author(s): Firas J. Al-Maliki

Journal: Advances in Materials Physics and Chemistry
ISSN 2162-531X

Volume: 02;
Issue: 03;
Start page: 110;
Date: 2012;
Original page

Keywords: Random Lasers | Sol-Gel | Nanoscale Materials and Structures

ABSTRACT
The synthesis, structural characterization, and amplified spontaneous emission spectroscopy of dye-scattering particles in inorganic medium based on Rhodamine 610-TiO2 nanoparticles confined in silica xerogel matrix have been reported. Optimum concentrations have been determined depending on the normal fluorescence spectra for laser dye, in order to provide amplification, and TiO2 nanoparticals as scatter center. Random Laser has been studied under second harmonic Nd: YAG laser excitation. At the optimum concentrations, the results show that the values of bandwidth at full width half-maximum (FWHM) and the threshold energy are about 11 nm and 3 mJ respectively. The scattered and amplified probe light has been collected on a PC-interfaced CCD camera system.
RPA Switzerland

Robotic Process Automation Switzerland

    

Tango Jona
Tangokurs Rapperswil-Jona