Figure 8
From: Magneto-optical borogermanate glasses and fibers containing Tb3+
(a) Photographs of the BGB-xTb glasses and the magnetic attraction of the BGB-18Tb glass using a commercial neodymium magnet. Plots of VB as a function of (b) Tb4O7 content (mol%), (c) Tb3+ ions density (g cm−3), and (d) wavelength.
