无机材料学报

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玻璃GRIN光学元件光学性质计算模型的适用性

郝寅雷   

  1. 中国科学院长春光学精密机械与物理研究所 长春 130022
  • 收稿日期:2002-02-04 修回日期:2002-04-08 出版日期:2003-03-20 网络出版日期:2003-03-20

Adaptability of Glass Properties Estimating Model for GRIN Optic Elements

HAO Yin-Lei   

  1. Changchun Institute of Optics; Fine Mechanics and Physics; CAS Changchun 130022; China
  • Received:2002-02-04 Revised:2002-04-08 Published:2003-03-20 Online:2003-03-20

摘要: 建立在均匀、无应力状态基础上的玻璃性质计算模型,在用于离子交换法制备的GRIN光学元件的折射率变化值(△N)计算时与实验结果有一定的偏差.本文对HSD(Higgins,Sun和Davis)模型和干福熹模型进行了比较,结果表明,干福熹模型用于低应力光学元件的计算时计算结果与实验值偏差较小,但对高应力GRIN光学元件的△N计算偏差很大;HSD模型在计算过程中分别考虑了玻璃组分的极化率因素和体积因素对其折射率的影响,在用于高应力GRIN光学元件△N计算时具有更强的适用性.

关键词: 梯度折射率, 离子交换, 玻璃, 模型

Abstract: Glass properties estimating models based on uniform and stress free glasses encounter certain
discrepancy from measured value when being used for refractive index change (ΔN) estimation in gradient index (GRIN) optic element
prepared by ion exchange. A comparison was made between HSD model and Gan Fuxi model in this paper. Result shows that Gan Fuxi model generates
relatively low aberration when being used to calculate in lightly stressed GRIN optic element, but becomes invalid in heavily stressed GRIN optic
element; While HSD model is much more adaptive on estimating in heavily stressed GRIN optic element, for involving polarizability factor and volume
factor of glass composition separately.

Key words: gradient index, ion exchanging, glass, model

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