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

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Unruh T, Schulte A, Guo Y, Schirmacher W, Schmid B
Zeitschrift: Journal of Non-Crystalline Solids
Verlag: ELSEVIER SCIENCE BV
Jahr der Veröffentlichung: 2011
Band: 357
Heftnummer: 2
Seitenbereich: 506-509
ISSN: 0022-3093


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.



FAU-Autoren / FAU-Herausgeber

Unruh, Tobias Prof. Dr.
Professur für Nanomaterialcharakterisierung (Streumethoden)


Autor(en) der externen Einrichtung(en)
Johannes Gutenberg-Universität Mainz
Technische Universität München (TUM)
University of Central Florida (UCF)


Zitierweisen

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.

BibTeX: 

Zuletzt aktualisiert 2018-06-08 um 17:25