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首页> 外文会议>Conference on Lidar Remote Sensing for Industry and Environment Monitoring Ⅱ, Jul 30-31, 2001, San Diego, USA >High-resolution spectra of atmospheric water vapor in the near-IR using a Raman-shifted alexandrite laser
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High-resolution spectra of atmospheric water vapor in the near-IR using a Raman-shifted alexandrite laser

机译：使用拉曼位移变石激光器近红外中大气水蒸气的高分辨率光谱

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摘要

We have developed a pulsed, narrow line Raman shifted alexandrite laser to produce tunable near-IR radiation in the 1140 nm absorption band of water vapor. With the first Stokes Raman conversion in hydrogen, the full tuning range of alexandrite, 730-790 nm, can potentially cover the wavelength range 1050 1200 nm. The application to differential absorption lidar, DIAL, is the vertical profiling of humidity and temperature in the atmosphere. This paper reports the application of Raman-shifted alexandrite radiation for new quantitative measurements of the strengths and widths of water vapor absorption lines between 8865 and 8915 cm~(-1). Alexandrite wavelength determination was obtained with oxygen A-band rotational lines near 765 nm. Similar applications and studies of the water vapor band near 940 nm can be readily carried out by Raman-shifting in deuterium.
机译：我们已经开发出脉冲，细线拉曼位移变绿变石激光器，以在水蒸气的1140 nm吸收带中产生可调的近红外辐射。在氢气中进行首次斯托克斯拉曼转换后，翠绿宝石的整个调谐范围为730-790 nm，有可能覆盖1050 1200 nm的波长范围。差分吸收激光雷达DIAL的应用是大气中湿度和温度的垂直分布图。本文报道了拉曼位移变绿变石辐射在8865至8915 cm〜（-1）之间的水蒸气吸收谱线强度和宽度的新定量测量中的应用。用约765 nm的氧气A波段旋转线确定了亚历山大石的波长。通过在氘气中进行拉曼位移，可以轻松地对940 nm附近的水蒸气带进行类似的应用和研究。

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