The wavelength dispersion in Faraday effect of 40AlF2.22.5BaF2.22.5CaF2.10LnF3 glasses (Ln=La, Ce, Pr, Tb and Dy) have been examined. Glass containing LaF3 has a positive Verdet constant in the wavelength region from 250 to 850nm and the magnitude of Verdet constants decreases with increasing wavelength. On the other hand the Verdet constants of glasses containing other rare earth ions are negative and the absolute magnitude of Verdet constants decreases with increasing wavelength.
Origin
Erato, Japan
Journal Title
Phys Chem Glasses 38 5 1997 248-250
Sector
Special Glass
Class
S 1237