DOI > 10.5291/ILL-DATA.7-01-440

This proposal is publicly available since 08/29/2021

Title

Measurements of phonon density of states in Yb:CaF2 transparent ceramics

Abstract

In the past decade, transparent ceramics as solid-state lasers hosts have represented a major technological breakthrough in the field of laser materials. Ytterbium doped calcium fluoride (Yb:CaF2) represent one of the most promising compound for this application. Our team has recently developed a new fabrication process that leads to Yb:CaF2 transparent ceramics with excellent optical properties close to single crystals quality. Since thermal conductivity is an important parameter to take into account when it comes to laser host materials, we need to study the thermal properties of our ceramics and compare them with single crystal. We are currently performing thermal conductivity measurements on our ceramics and computing modelizations based on phonon scattering theory. However, we need to validate the relevance of our model with measurements of the phonon density of states of our ceramics and compare it with the single crystal. This kind of measurement can only be performed on a time of flight inelastic neutron scattering facility.

Experimental Report

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Data Citation

The recommended format for citing this dataset in a research publication is in the following format:

SARTHOU Julia; GREDIN Patrick; KOZA Michael Marek; Mortier M and ROLS Stephane. (2016). Measurements of phonon density of states in Yb:CaF2 transparent ceramics. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-01-440

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Metadata

Experiment Parameters

  • Environment temperature

    Room temperature
  • Experiment energy

    4.1A(IN6)/2.4A(IN4)

Sample Parameters

  • Formula

    • Yb:CaF2 Transparent ceramic
    • Yb:CaF2 Single crystal