碲铌锌系统玻璃是一种性能优良的三阶非线性光学玻璃材料,综合品质优于其它非线性光学玻璃材料.在碲铌锌系统玻璃中引入稀土离子,利用其4f电子的跃迁提高谐波光子激发的可能性,从而提高玻璃的三阶光学非线性.研究表明,随着稀土离子的加入,532nm附近玻璃的光吸收明显增加,使由相同波长激光激发的光学非线性呈线性增长.掺入Ce3+、Ho3+、Y3+的玻璃三阶非线性极化率最高可达2.3×10-12esu.
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