Spectroscopic Properties of Cr,Yb:YAG Crystals

Abstract

Abstract: Cr,Yb:YAG laser crystals codoped with 10 at% Yb and different concentration Cr were grown by the Czochralski
method. The absorption spectra, fluorescence spectra, and fluorescence lifetimes of Cr,Yb:YAG crystals were investigated at room temperature. With
the increase of Cr concentration in Cr,Yb:YAG crystals, the absorption coefficient at 1.03μm increases, and the fluorescence intensity and
lifetime decrease, the energy transfer efficiency from Yb³⁺ to Cr⁴⁺ increases and the quantum efficiency in Cr,Yb:YAG crystals decreases. The
optimum Cr concentration for Cr,Yb:YAG crystals was estimated.

Key words: Cr, Yb:YAG crystal, spectroscopic property, energy transfer, concentration effect

CLC Number:

TN244

XU Xiao-Dong,ZHAO Zhi-Wei,SONG Ping-Xin,ZHOU Guo-Qing,DENG Pei-Zhen,XU Jun. Spectroscopic Properties of Cr,Yb:YAG Crystals[J]. Journal of Inorganic Materials.

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Spectroscopic Properties of Cr,Yb:YAG Crystals

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