Thermal Conductivity Measurements of ytterbium doped CaF2 transparent ceramics by 3ω-method (CAT#: STEM-PPA-0048-WXH)

Introduction

Ytterbium-doped calcium fluoride transparent ceramics is considered as a promising laser gain medium.<br />Since the first YAG transparent ceramic for laser applications reported in 1995, which demonstrated the advantages of ceramics with respect to single crystals, rare earth-doped polycrystalline ceramics as solid-state laser host materials have been widely used and studied. Although Nd:YAG has become a leader material in the field of transparent ceramics and is nowadays industrially produced, a rare-earth-doped calcium fluoride matrix has been known as a host material for solid-state lasers since1964 and has experienced a renewed interest in the past decade, especially when doped with ytterbium cations, due to its excellent optical properties.