VCSEL based detection of water vapor near 940nm
| Autor: | Heidi Cattaneo, Rolf Hernberg, Toni Laurila |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Tunable diode laser absorption spectroscopy
Absorption spectroscopy business.industry Chemistry Lasers Spectrum Analysis Temperature Analytical chemistry Water Atmospheric temperature range Laser Atomic and Molecular Physics and Optics Analytical Chemistry law.invention Ambient air Vertical-cavity surface-emitting laser law Data Interpretation Statistical Optoelectronics Spectrum analysis business Instrumentation Spectroscopy Water vapor |
| Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 60:3269-3275 |
| ISSN: | 1386-1425 |
| DOI: | 10.1016/j.saa.2004.02.025 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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