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

页码：374 / 381

页数：8

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