Inelastic neutron and low-frequency Raman scattering in a niobium-phosphate glass for Raman gain applications

Unruh T, Schulte A, Guo Y, Schirmacher W, Schmid B (2011)


Publication Status: Published

Publication Type: Journal article

Publication year: 2011

Journal

Publisher: ELSEVIER SCIENCE BV

Book Volume: 357

Pages Range: 506-509

Journal Issue: 2

DOI: 10.1016/j.jnoncrysol.2010.06.073

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. (C) 2010 Elsevier B.V. All rights reserved.

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APA:

Unruh, T., Schulte, A., Guo, Y., Schirmacher, W., & Schmid, B. (2011). Inelastic neutron and low-frequency Raman scattering in a niobium-phosphate glass for Raman gain applications. Journal of Non-Crystalline Solids, 357(2), 506-509. https://dx.doi.org/10.1016/j.jnoncrysol.2010.06.073

MLA:

Unruh, Tobias, et al. "Inelastic neutron and low-frequency Raman scattering in a niobium-phosphate glass for Raman gain applications." Journal of Non-Crystalline Solids 357.2 (2011): 506-509.

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