Stepwise graded refractive-index profiles for design of a narrow-bandpass filter

被引：4
|
作者：
Wang, XR
Masumoto, H
Someno, Y
Chen, LD
Hirai, TS
机构：
[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] ALPS Elect Co Ltd, Mechatron Devices Div 1, Kakuda, Miyagi 9811505, Japan
来源：
APPLIED OPTICS | 2001年 / 40卷 / 22期
关键词：
D O I：
10.1364/AO.40.003746
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A combination of stepwise graded refractive-index profiles and a cavity structure is used for designing narrow-bandpass filters of TiO2/SiO2 multilayer films upon BK7 glass substrates. Symmetrical profiles of stepwise graded refractive indices result in high transmittance of passbands for the designed filters. The bandwidth of the narrow-bandpass filter is controlled by adjustment of parameters such as the thickness and the number of layers in the multilayer stack. This design is proposed as anew and simple method for coating synthesis of optical filters. (C) 2001 Optical Society of America.
引用
收藏
页码：3746 / 3752
页数：7
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