Figure 6
From: Magneto-optical borogermanate glasses and fibers containing Tb3+
(a) UV–Vis–NIR optical absorption, (b) transmission spectra, (c) refractive indices as a function of Tb4O7 content, at different wavelengths, and (d) refractive indices for BGB-xTb glasses (0 ≤ x ≤ 18), as a function of wavelength.
