Herein, diamagnetic PbO–Bi₂O₃–B₂O₃–Al(PO₃)₃ glasses are prepared by melt-casting and the influence of phosphorus tetrahedral on the structure and optical properties of the glass has been systematically investigated. Compared to diamagnetic PbO–Bi₂O₃–B₂O₃ (PBB) glasses, the original boron chain network has been replaced by the boron-phosphate structure. The metaphosphate forms [PO₄] units and expands the glass network, which leads to the decline of density and the increase of refractive index (up to ~2.423 @633 nm). The improvement of the magneto-optical properties performs in that the Verdet constant achieves 0.203 min/G cm at 633 nm and higher magneto-optical figure of merit displays a better optical performance than the diamagnetic glass without metaphosphate.

在此，通过熔铸法制备了抗磁性的PbO-Bi ₂ O ₃ -B ₂ O ₃ -Al（PO ₃）₃玻璃，并系统地研究了磷四面体对玻璃的结构和光学性能的影响。与抗磁性PbO–Bi ₂ O ₃ –B ₂ O ₃（PBB）玻璃相比，原始的硼链网络已被磷酸硼结构取代。偏磷酸盐形式[PO ₄]单元并扩大了玻璃网络，这导致密度下降和折射率增加（在633 nm时高达〜2.423）。磁光性能的改善在于，Verdet常数在633 nm处达到0.203 min / G cm，并且更高的磁光品质因数显示出比无偏磷酸盐的抗磁玻璃更好的光学性能。