Circular paraboloid reflection cell for laser spectroscopic trace gas analysis

被引：31

作者：

Mangold, Markus ^{[1
,2
]}

Tuzson, Bela ^{[1
]}

Hundt, Morten ^{[1
]}

Jagerska, Jana ^{[1
,3
]}

Looser, Herbert ^{[4
]}

Emmenegger, Lukas ^{[1
]}

机构：

[1] Empa, Swiss Fed Labs Mat Sci & Technol, Uberlandstr 129, CH-8600 Dubendorf, Switzerland

[2] ETH, IRsweep GmbH, IQE, Auguste Piccard Hof 1,HPT H4-1, CH-8093 Zurich, Switzerland

[3] UiT Arctic Univ Norway, Dept Phys & Technol, N-9037 Tromso, Norway

[4] Univ Appl Sci, Inst Aerosol & Sensor Technol, FHNW, Steinackerstr 5, CH-5210 Windisch, Switzerland

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2016年 / 33卷 / 05期

基金：

瑞士国家科学基金会;

关键词：

PATHS;

D O I：

10.1364/JOSAA.33.000913

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Absorption cells with circular geometry are a class of multipass reflection cells consisting of a single, circular mirror. They can be particularly favorable for trace gas measurements because of their mechanical robustness, simplicity, and their optical versatility. In this article, we present detailed theoretical considerations and ray tracing simulations for the optimization of the optical design of circular multipass reflection cells. A parabolic mirror shape in a confocal arrangement is found to be most suitable for long optical paths in a small volume. We experimentally demonstrate more than 12 m optical path in a 14.5 cm diameter gas cell and NO2 concentration measurements in ambient air with a measurement precision better than 0.1 ppb. (C) 2016 Optical Society of America

引用

页码：913 / 919

页数：7

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