Compact multipass optical cell for laser spectroscopy

被引：118

作者：

Tuzson, Bela ^{[1
]}

Mangold, Markus ^{[1
]}

Looser, Herbert ^{[2
]}

Manninen, Albert ^{[1
,3
]}

Emmenegger, Lukas ^{[1
]}

机构：

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

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

[3] Ctr Metrol & Accreditat, FI-02151 Espoo, Finland

来源：

OPTICS LETTERS | 2013年 / 38卷 / 03期

关键词：

PATHS;

D O I：

10.1364/OL.38.000257

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A multipass cell (MPC) design for laser absorption spectroscopy is presented. The development of this new type of optical cell was driven by stringent criteria for compactness, robustness, low volume, and ease of use in optical systems. A single piece of reflective toroidal surface forms a near-concentric cavity with a volume of merely 40 cm(3). Contrary to traditional MPCs, this design allows for flexible path-length adjustments by simply changing the aiming angle of the laser beam at the entrance window. Two effective optical path lengths of 2.2 and 4.1 m were chosen to demonstrate the cell's suitability for high-precision isotope ratio measurements of CO2 at 1% and ambient mixing ratio levels. (C) 2013 Optical Society of America

引用

页码：257 / 259

页数：3

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