Abstract
Lanthanum lutetium gallium garnet of the compositions and with various chromium concentrations was grown by the Czochralski method. We measured the luminescence, absorption excitation, and excited-state absorption spectra. Two different octahedrally coordinated low field centers were found in crystals of both compositions. In the crystals an additional absorption found in the region 13 000–16 000 cm-1 is attributed to the tetrahedrally coordinated system.
© 2003 Optical Society of America
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