Gradient refractive index square lenses. I. Fabrication and refractive index distribution.
An equation for the distribution of refractive index of a gradient refractive index square lens has been established, and such a lens has been fabricated using ion exchange. The distributions of refractive indices at different angles of incidence are discussed. Experimental and theoretical data are compared and show good agreement.
Lv
Hao
H
Department of Physics, Xiaogan University, Xiaogan 432000, China. kuerlvhao@yahoo.com.cn
Liu
Aimei
A
Tong
Jufang
J
Yi
Xunong
X
Li
Qianguang
Q