Thermo–optic characterization of neodymium/nickel doped silica glasses prepared via sol–gel route

George, Sajan D (2012) Thermo–optic characterization of neodymium/nickel doped silica glasses prepared via sol–gel route. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 98. pp. 474-478. ISSN 1386-1425

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Abstract

Intrinsic as well as rare earth (Neodymium) doped silica glasses with various molar ratio of dopant and a metallic (Nickel) co-dopant is prepared via sol–gel route. The structural characterization of the sample is carried out using X-ray diffraction and Fourier Transform Infrared Spectroscopy. The influence of dopant and doping concentration on the optical properties of silica matrix is investigated via UV–VIS absorption spectroscopy. Effect of dopant on thermal effusivity value of the host matrix is carried out by laser induced open cell photoacoustic technique. Analysis of the results showed that doping affect the thermal effusivity value and results are interpreted in terms of structural modification of the lattice and phonon assisted heat transport mechanism.

Item Type: Article
Uncontrolled Keywords: Sol–gel Thermal effusivity Photoacoustic technique
Subjects: Departments at MU > Atomic Molecular Physics
Depositing User: KMC Manipal
Date Deposited: 13 Apr 2013 06:09
Last Modified: 13 Apr 2013 06:09
URI: http://eprints.manipal.edu/id/eprint/79674

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