Title

Inelastic Neutron And Low-Frequency Raman Scattering In A Niobium-Phosphate Glass For Raman Gain Applications

Keywords

Boson peak; Neutron scattering; Raman gain; Raman scattering

Abstract

We present measurements of the vibrational spectrum of a binary niobium-phosphate glass in the THz frequency range using inelastic neutron and Raman scattering. The spectra of these glasses show a low-frequency enhancement of the vibrational density of states ("boson peak"). Using a recently developed theory of vibrational excitations in disordered solids we are able to reconcile the measured neutron and Raman spectra using fluctuating elastic and Pockels constants as a model concept. As the spontaneous Raman susceptibility is a key parameter for Raman amplification our results suggest a significant gain profile for application of niobium-phosphate glasses in Raman amplifiers. © 2010 Elsevier B.V.All rights reserved.

Publication Date

1-15-2011

Publication Title

Journal of Non-Crystalline Solids

Volume

357

Issue

2

Number of Pages

506-509

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.jnoncrysol.2010.06.073

Socpus ID

78751569826 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/78751569826

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