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Spectroscopy and high pressure spectroscopy of the Cr-doped glass materials.

Grinberg M., Borzowska J., Padlyak B., Nowosielski T., Kukliński B., Buchynski P.

Optica Applicata

2000

Vol. 30, nr 4

509-516

Optical spectroscopy and high pressure optical spectroscopy of the Cr-doped glasses of CaO-Ga/sub 2/O/sub 3/-GeO/sub 2/ system have been used. The emission spectrum consists of the broad band at about 12700 cm/sup -1/ and the sharper band with maximum peak at 14495 cm/sup -1/ (the R line emission). We have attributed the R line luminescence to the octahedral strong field Cr/sup 3+/ sites in the microcrystallites whereas the broad band luminescence has been related to the chromium in the glassy phase.