Magnetooptics of the Luminescent Transitions in Tb3+:Gd3Ga5O12
Document Type
Article
Publication Date
8-2015
Keywords
Garnet, Magnetooptics, Magnetic circular polarization of luminescence, Zeeman splitting
Journal Title
Optical Materials
Volume
46
First Page
282
Last Page
291
DOI
10.1016/j.optmat.2015.04.033
First Department
Physics
Recommended Citation
Valiev, Uygun V.; Gruber, John B.; Ivanov, Igor A.; Burdick, Gary W.; Liang, Hongbin; Zhou, Lei; Fu, Dejun; Pelenovich, Oleg V.; Pelenovich, Vasiliy O.; and Lin, Zhou, "Magnetooptics of the Luminescent Transitions in Tb3+:Gd3Ga5O12" (2015). Faculty Publications. 3.
https://digitalcommons.andrews.edu/pubs/3
Comments
The spectra of the luminescence and magnetic circular polarization of luminescence in terbium–gadolinium gallium garnet Tb3+:Gd3Ga5O12 (Tb3+:GGG) were studied within the visible spectral range at temperatures T = 90 and 300 K in an external magnetic field of 0.45 T. The Zeeman effect in the luminescence “green” band associated with 4f → 4f transition 5D4 → 7F5 of Tb3+:GGG was also studied at T = 90 K in an external field of 0.55 T. Measurement of the Zeeman effect in Tb3+:GGG carried out for some doublet lines of the luminescence band 5D4 → 7F5 at T = 90 K shows that a magnetooptical effect of the intensity change of the emitted light is observed on these lines, in contrast to pure Zeeman splitting of the emission lines measured in the luminescence band 5D4 → 7F6. For the systems we have studied, the maximal value of the magnetooptical effect of the intensity change of the luminescence line at low temperatures has been achieved in paramagnetic garnet Tb0.2Y2.8Al5O12 at comparatively low magnetic fields.