Study on refractive index distribution of the square self-focusing lens
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- 作者：Yongjia Yang ; yangyong.jia@163.com" class="auth_mail" title="E-mail the corresponding author ; Yanling Han
- 关键词：Information optics ; Refractive index distribution ; Jamin interference ; Square self-focusing lens
- 刊名：Optik - International Journal for Light and Electron Optics
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：128
- 期：Complete
- 页码：207-211
- 全文大小：541 K
文摘
In order to acquire the refractive index distribution of the square self-focusing lens, a semi-empirical method is reported. The diffusion equation’s solution under the square boundary conditions is approximated by the solution under the circular boundary conditions. The four unknown coefficients of the approximate solution are acquired by the known refractive index of the square self-focusing lens, and the refractive index is obtained by Jamin interference method. The calculation result agrees well with the experimental data, the average value of the relative error is less than 0.3%.