Abstract

Laser crystals with disordered structure present a series of advantages for diode pumping or short pulse generation ascompared with ordered crystals. Such a system proved to be calcium lithium niobium gallium garnet (CLNGG) doped withNd3. The paper presents the growth and X-ray analysis of specially doped CLNGG. Very few spectroscopic data on thissystem have been previously published. The paper presents low temperature (1 OK) absorption spectra, site selective excitationand lifetime measurements of Nd3 in CLNGG. At least four distinct nonequivalent centers are observed, the spectral lines forevery center presenting a disordered Gaussian shape. Based on structural, spectral static and emission dynamics data anattempt ofmodeling the structure ofthese centers is proposed.Keywords: Laser crystals, Nd3 in calcium lithium niobium gallium garnet, optical spectroscopy

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