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Optical spectroscopy study of Cr 3+ ion in NaMg 3 Al(MoO 4 ) 5 crystal
Author(s) -
Hermanowicz K.
Publication year - 2007
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.200642352
Subject(s) - crystal (programming language) , ion , spectroscopy , luminescence , absorption spectroscopy , analytical chemistry (journal) , emission spectrum , crystal structure , excitation , doping , chemistry , atomic physics , spectral line , materials science , crystallography , physics , optics , optoelectronics , organic chemistry , chromatography , quantum mechanics , astronomy , computer science , programming language
Electron absorption, excitation and emission spectra have been measured for Cr 3+ ion‐doped NaMg 3 Al(MoO 4 ) 5 crystal in the temperature range from 9 to 300 K. The sharp lines of the 2 E– 4 T 2 emission and broadband 4 T 2 – 4 A 2 luminescence from strong and weak crystal field Cr 3+ sites as well as their temperature dependencies were observed. Below 200 K, Cr 3+ ion pairs are detected. The local structure of Cr 3+ surroundings is discussed in terms of the spectroscopic results and the crystal field parameters Dq , B and C of the Cr 3+ ion are derived. The Huang–Rhys, S , and breathing phonons, ħω , parameters are reported. The use of the studied crystal as a laser material is briefly analyzed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)