核心参数
组件类别: 光源
Water Vapor Spectroscopy
Water is the most important molecule on earth. Without water, there would be no life possible on this planet. However, in some 'applications' the amount of water vapor needs to be exactly measured. In the Hitran database, many transitions can be found, and there are several strong absorption lines the 1390nm regime, for example. Some of these strong line at 1388nm are shown in the figure, detected with a simple water vapor absorption experiment.
In this figure, the detected optical density at the absorption maximum at a line at 1367.86nm is plotted versus the absorption coefficient calculated according to the Hitran database.
In another experiment, wavelength modulation spectroscopy was accomplished by mixing a low and a high tuning frequency. The 2f absorption spectra recorded with a Lock-In amplifier are shown in the figure.
These experiments have been performed with our TEC100 Littrow Laser System, as well as with our TEC500 Littman Laser System. We gratefully acknowledge finanical support by the BMBF within contract 13N7157. For more details, please check our publications.
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上海大学
2015/02/10
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企业名称
筱晓(上海)光子技术有限公司
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有限责任公司(自然人投资或控股)
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913101163987029680
成立日期
2014-06-26
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人民币1000.0000万元整
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