论文信息 - Yb3+ ion in calcium niobium gallium garnet crystals: Nearest neighbor environment and optical spectra

Yb3+ ion in calcium niobium gallium garnet crystals: Nearest neighbor environment and optical spectra

We have studied inhomogeneously broadened optical spectra of the Yb3+ ion in calcium niobium gallium garnet crystals using selective laser excitation, time-resolved luminescence spectroscopy, and 2F5/2 luminescence decay measurements under excitation in different portions of the absorption spectrum. We have identified spectral features due to individual optical centers differing in excitation and luminescence wavelengths and excited-state lifetime. Tentative structures of the optical centers responsible for the inhomogeneous broadening of the spectra are described.

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