Low-frequency Raman scattering in binary silicate glass: Boson peak frequency and its general expression
نویسندگان
چکیده
منابع مشابه
Inelastic neutron and low-frequency Raman scattering in a niobium-phosphate glass for Raman gain applications
Available online xxxx
متن کاملRaman scattering and the low-frequency vibrational spectrum of glasses.
We present a theory of low-frequency Raman scattering in glasses, based on the concept that light couples to the elastic strains via spatially fluctuating elasto-optic (Pockels) constants. We show that the Raman intensity is not proportional to the vibrational density of states (as was widely believed), but to a convolution of Pockels constant correlation functions with the dynamic strain susce...
متن کاملLow-frequency Raman scattering in alkali tellurite glasses
Raman scattering has been employed to study the alkali-cation size dependence and the polarization characteristics of the low-frequency modes for the glass-forming tellurite mixtures, 0⋅1M2O–0⋅9TeO2 (M = Na, K, Rb and Cs). The analysis has shown that the Raman coupling coefficient alters by varying the type of the alkali cation. The addition of alkali modifier in the tellurite network leads to ...
متن کاملLow-Frequency Electromagnetic Scattering
The main result of this paper is to reduce the calculation of higher-order terms in the asymptotic expansions of the electric and magnetic elds at low frequencies to the solutions of certain canonical problems. We also provide a new and simple variational proof of the convergence of the electric and magnetic elds solutions of the scattering problem for the Maxwell equations as the frequency goe...
متن کاملBoson peak and terahertz frequency dynamics of vitreous silica
This paper describes the progress that has been made in the past decade in the investigation of the peculiar dynamic properties of vitreous silica (v-SiO2) and related glasses in the terahertz (THz) frequency range. The reason why we focus our attention on v-SiO2 is that it is one of the principal network glasses and exhibits all features typical of glasses. These are the increased inelastic sc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Ceramic Society of Japan
سال: 2013
ISSN: 1882-0743,1348-6535
DOI: 10.2109/jcersj2.121.1012