Title

Magnetooptics of the Luminescent Transitions in Tb3+:Gd3Ga5O12

Document Type

Article

Publication Date

8-2015

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 5D47F5 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 5D47F5 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 5D47F6. 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.

Journal Title

Optical Materials

Volume

46

First Page

282

Last Page

291

DOI

10.1016/j.optmat.2015.04.033

First Department

Physics