基于垂直腔面发射激光器（VCSEL）对940纳米附近水蒸气的检测。
VCSEL based detection of water vapor near 940nm.
作者信息
Cattaneo Heidi, Laurila Toni, Hernberg Rolf
机构信息
Optics Laboratory, Institute of Physics, Tampere University of Technology, P.O. Box 692, FIN-33101 Tampere, Finland.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2004 Dec;60(14):3269-75. doi: 10.1016/j.saa.2004.02.025.
A vertical-cavity surface-emitting laser (VCSEL) was used to study the absorption spectrum of water vapor in the 940nm region. Measurements were performed in ambient air at room temperature and in a hydrogen-oxygen flame over the temperature range of 1500-1800K. Several rotational absorption lines within the 2v1 + v3 vibrational band were measured. The absorption spectra were well resolved, which demonstrates the feasibility of VCSEL-based spectroscopic measurements of water vapor at room and high-temperature in this spectral region. The results were in good agreement with the values obtained from the HITRAN-96 database.
使用垂直腔面发射激光器（VCSEL）研究了940nm区域内水蒸气的吸收光谱。测量在室温下的环境空气中以及在1500 - 1800K温度范围内的氢氧火焰中进行。测量了2v1 + v3振动带内的几条转动吸收线。吸收光谱得到了很好的分辨，这证明了基于VCSEL在该光谱区域进行室温和高温下水蒸气光谱测量的可行性。结果与从HITRAN - 96数据库获得的值吻合良好。
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