An Optical Cavity Design for an Infrared Gas Detector Using an Off-axis Parabolic Mirror

被引：1
|
作者：
Jeong, You-Jin [1 ]
Kang, Dong-Hwa [1 ]
Seo, Jae-Yeong [1 ]
Jo, Ye-Ji [1 ]
Seo, Jin-Hee [1 ]
Choi, Hwan-Young [2 ]
Jung, Mee-Suk [1 ]
机构：
[1] Korea Polytech Univ, Dept Nanoopt Engn, Shihung 15073, South Korea
[2] Korea Univ Technol & Educ, Sch Mechatron Engn, Cheonan 31253, South Korea
来源：
CURRENT OPTICS AND PHOTONICS | 2019年 / 3卷 / 05期
关键词：
Off-axis parabolic mirror; Non-dispersive infrared; Gas detector;
D O I：
10.3807/COPP.2019.3.5.374
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This study examined a method for designing the optical cavity of a non-dispersive infrared gas detector. The infrared gas detector requires an optical cavity design to lengthen the ray path. However, the optical cavity with multiple reflecting surfaces has off-axis aberration due to the characteristics of the reflecting optical system. The rays were parallelized by using the off-axis parabolic mirror to easily increase the ray path and eliminate off-axis aberration so that the rays are admitted to the effective area of the infrared detector uniformly. A prototype of an infrared gas detector was produced with the designed optical cavity to confirm the performance.
引用
收藏
页码：374 / 381
页数：8
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