Abstract

The fluorescence of some dielectric crystals doped with Cr³⁺ ions is studied upon laser excitation in the range of the long wavelength tail of the absorption spectrum (cooling mode). Although no actual optical cooling was observed, spectroscopic results and temperature measurements of the samples indicate that electron-phonon bands of Cr³⁺ ions are of interest for obtaining laser cooling.

中文翻译：

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Cr3+ 掺杂晶体作为用于固体激光冷却的有前途的材料

摘要

研究了一些掺杂有Cr ³⁺离子的介电晶体在吸收光谱长波长尾部（冷却模式）范围内的激光激发下的荧光。虽然没有观察到实际的光学冷却，但样品的光谱结果和温度测量表明，Cr ³⁺离子的电子-声子带对于获得激光冷却是有意义的。