Optical properties of chromium(III) in M^IIn(MoO₄)₂hosts, where M^I= Li, Na, K, Rb, Cs

Abstract

Electron absorption, excitation and emission as well as electron spin-resonance spectra were measured for orthorhombic (K, Rb, Cs) and monoclinic (Li, Na) MICrxIn1-x(MoO4)2 (x = 0.5-2%, MI = Li, Na, K, Rb, Cs) in the temperature range 5-300 K. The local structure of the Cr3+ ions is discussed on the basis of spectroscopic results and the crystal-field parameters are derived for all of the materials. The possible application of the compounds studied as laser materials is discussed.