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Optical Studies of Er 3+ Ions in Er 2 Ge 2 O 7 Single Crystals
Author(s) -
Yaeger I.,
Shuker R.,
Wanklyn B. M.
Publication year - 1981
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221040227
Subject(s) - absorption (acoustics) , absorption spectroscopy , spectral line , ion , materials science , analytical chemistry (journal) , atomic physics , chemistry , physics , optics , composite material , organic chemistry , chromatography , astronomy
Optical absorption spectra of Er 3+ in Er 2 Ge 2 O 7 single crystals are studied in the spectral range 14500 to 25000 cm −1 as a function of temperature from ambient down to 12.5 K. The transitions associated with the Er 3+ absorption lines are identified. Kramers' doublets of the Er 3+ ground term 4 I 15/2 are found at 13, 88, 125, 185, 230, 392, and 436 cm −1 relative to the ground level.