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Faraday rotation effects of Mn2+-modified Tb2O3-B2O3 glass in pulsed magnetic field

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3 Author(s)
Imaizumi, D. ; Dept. of Mater. Sci. & Eng., Nagoya Inst. of Technol., Japan ; Hayakawa, Tomokatsu ; Nogami, M.

We present the dynamical Faraday rotation of a terbium metaborate glass (25Tb2O3-75B2O3) modified with Mn2+ ions using pulsed magnetic fields, which reached up to ~16 T. The superexchange couplings of Tb3+-O 2--Tb3+ or Tb3+-O2--Mn2+ were magnetooptically observed at lower temperature. In particular, the enhancement of the Faraday rotation effect was obtained at 15 K with repetitional operation of the 16-T pulsed magnetic fields, resulting in the destruction of the dimer couplings. When the operated glasses were heated back to 300 K, only the Tb2O3-B2O3:Mn2+ exhibited a significant change in the Faraday rotation

Published in:

Lightwave Technology, Journal of  (Volume:20 ,  Issue: 4 )

Date of Publication:

Apr 2002

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