Enhancement of the Automatic Diameter Control System for the Czochralski Growth of Nd:GdVO4 Crystals

Abstract

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Transparent and inclusion-free RE1−xLaxVO4 (RE=Gd, Y) single crystal fibers grown by LHPG technique

“…Of all the materials suitable for use as the active element with these types of lasers, the vanadate single crystals are very important due to the possibility of obtaining laser system with low threshold and high slope performance and efficiency [1,2]. However, the difficulties involved in the growth of high quality REVO 4 (RE ¼ Y, Gd) single crystals are limiting the production of these compact solid state laser systems [6][7][8][9]. The major problem in the growth process of such crystals lies in the valence change of vanadium ions, from V 5+ to V 4+ or even V 3+ , at high temperature.…”