Raman Gain In Tellurite Glass: How Combination Of Ir, Raman, Hyper-Raman And Hyper-Rayleigh Brings New Understandings

Abstract

A new multimodal approach that combines linear and nonlinear vibrational spectroscopies and hyper-Rayleigh scattering has been applied in the TeO2-TaO5/2-ZnO glass system to assess and quantify the relation between Raman gain and optical responses within the glass' network arrangement. The level of polymerization of the TeO4 chain-like structure in a TeO2 glass system has been identified to be the main parameter for reaching high linear and nonlinear optical constant. We have observed that replacement of TaO5/2 by ZnO strongly modifies the optical properties and, primarily, the Raman and hyper-Raman spectra of the glasses. In particular, we clearly demonstrate a linear relationship between Raman gain and the linear and second-order optical response of the glass, which is directly related to the number density of TeO4 chain-like units. Assuming that only TeO4 chain-like units contribute significantly to the glass' polarizability, we have found that about 30% of the Te atoms contribute to the hyperpolarizability of the binary system 80TeO2-20ZnO in very good accordance with neutron diffraction results.

Publication Date

10-13-2016

Publication Title

Journal of Physical Chemistry C

Volume

120

Issue

40

Number of Pages

23144-23151

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/acs.jpcc.6b07627

Socpus ID

84991738483 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84991738483

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