White-light emission studies of dysprosium-doped halide crystals

White light emission characteristics of Dy 3+ -doped CaF 2 , KPb 2 Cl 5 and KPb 2 Br 5 are investigated. Absorption, emission and lifetime measurements of these samples are performed to analyze the data. All these materials revealed bright white light under 405 nm diode laser excitation.