Portal de Periódicos da CAPES

Faraday Rotation Effect of Highly Tb 2 O 3 /Dy 2 O 3 -Concentrated B 2 O 3 −Ga 2 O 3 −SiO 2 −P 2 O 5 Glasses

2002; American Chemical Society; Volume: 14; Issue: 8 Linguagem: Inglês

10.1021/cm0117331

1520-5002

Tomokatsu Hayakawa, Masayuki Nogami, Nobuyuki Nishi, Naruhito Sawanobori,

Crystal Structures and Properties

A large amount of Tb2O3 and Dy2O3 has successfully been incorporated into a borate glass with a molar composition of 5B2O3−3Ga2O3−3SiO2−P2O5. Raman scattering analysis revealed the existence of isolated orthborate (BO3)3- groups with increasing rare-earth content. The obtained glass exhibited an excellent Faraday rotation effect in the visible region. The simultaneous incorporation of 40 mol % Tb2O3 and 10 mol % Dy2O3 offered the Verdet constant of as much as −185.3 rad/(T × m) at 632.8 nm at 300 K.