Growth and Characterization of Neodymium-Doped Yttrium Scandate Crystal Fiber with a Bixbyite-type Crystal Structure

Abstract

A crystal fiber of yttrium scandate YScO 3 doped with Nd 3+ , with a cubic bixbyite-type crystal structure, has been synthesized through laser-heated pedestal growth for the first time. Its crystal structure has been determined using low-temperature (150 K) single-crystal X-ray diffraction: space group Ia3̅ , a = 10.2166(1) Å, R = 0.0177. A new phase was characterized with micro-Raman scattering and fluorescence. Fluorescence excitation measurements show two complex local positions of Nd 3+ in the crystal structure with lifetimes τ 1 = 290 and τ 2 = 250 μs ( 4 F 3/2 multifold) at a temperature T = 77 K.

Achievements and Future Perspectives of the Trivalent Thulium-Ion-Doped Mixed-Sesquioxide Ceramics for Laser Applications

“…X-ray diffraction analysis and micro-Raman characterization were carried out in a 0.1 at. % Nd 3+ :YScO 3 crystal fiber grown via the LHPG method [ 153 ].…”

Elaboration and Luminescence Properties of Laser-Heated Pedestal Growth Sr3Al2O6-Based Fibers

“…The LHPG technique has been employed to prepare several single-crystal or polycrystalline optical fibers based on binary, ternary, or even quaternary compounds. − Among them, aluminate based-compositions such as YAG or sapphire have proven high optical efficiency and are attractive for optical applications. − , Nevertheless, even when the usefulness of the LHPG technique has been proved, it has been scarcely explored so far. The main compositional requirement is the existence of congruent crystallization from the molten state.…”

Спектроскопия Иттриевого Скандата, Легированного Ионами Тулия

“…1). Ранее проведенные исследования легированного Nd 3+ кристалла YScO 3 со структурным типом биксбиита показали, что Y 3+ и Sc 3+ статистически распределены между двумя позициями в соотношении примерно 1 : 1 в каждой [18]. При этом Nd 3+ свободно замещает основные катионы.…”