Unruh T, Schulte A, Guo Y, Schirmacher W, Schmid B (2011)
Publication Status: Published
Publication Type: Journal article
Publication year: 2011
Publisher: ELSEVIER SCIENCE BV
Book Volume: 357
Pages Range: 506-509
Journal Issue: 2
DOI: 10.1016/j.jnoncrysol.2010.06.073
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.
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://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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