Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
70 (1997), S. 2505-2507
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Optical absorption, photoluminescence, and luminescence lifetimes of Cr3+ in LiTaO3 were studied. It was found that a relatively sharp absorption band assigned previously to the no-phonon 4A2–2E transition shifted by 68 cm−1 when temperature decreased from 300 to 5 K. A sharp, four-component emission band recorded at low temperature was assigned on the basis of lifetime measurements to the no-phonon 2E–4A2 transitions of Cr3+ ions in Li+ and Ta5+ sites. Frequencies of these transitions are lower than that of the sharp absorption band at the same temperature implying that the latter band is not the no-phonon 4A2–2E line but it may be associated with a phonon satellite of the 4T2 state. Strong thermal quenching of broad band luminescence of Cr3+ was observed. © 1997 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.118904
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