Spectral Measurements of NH3 and H2O for Pollutant Gas Monitoring by 1.5 µm InGaAsP/InP Lasers
Spectral Measurements of NH3 and H2O for Pollutant Gas Monitoring by 1.5 µm InGaAsP/InP Lasers
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使用 1.5 µm InGaAsP/InP 激光器对 NH3 和 H2O 进行光谱测量，用于污染物气体监测
DOI：
10.1143/jjap.22.1553
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发表时间：
1983
影响因子：
1.5
通讯作者：
H. Tagawa
中科院分区：
文献类型：
--
作者：
M. Ohtsu;H. Kotani;H. Tagawa
用1.5 μ mInGaAsP/InP激光器测量了NH3和H2O中振动-旋转跃迁的组合音的吸收谱线，用于污染气体监测。观察到的NH_3和H_2O谱线的数目分别为21和1。用精密波长计测量了这些谱线的波长，误差在1.6 pm以内。对于这些测量，激光波长被稳定到NH3和H2O线。所得稳定性分别为3.0×10-10·τ-1/2和1.1×10-9，其中τ表示积分时间。NH_3气体监测灵敏度为2.3×10 ~（-3）Torr · m。此外，还介绍了利用光纤获得的光谱测量结果。
The absorption spectral lines of the combination tones of the vibration-rotation transitions in NH3 and H2O were measured with 1.5 µm InGaAsP/InP lasers for the purpose of pollutant gas monitoring. The numbers of observed NH3 and H2O lines were 21 and 1, respectively. The wavelengths of these lines were measured within the inaccuracy of 1.6 pm by a precise wavemeter. For these measurements, the laser wavelength was stabilized to NH3 and H2O lines. The resultant stabilities were 3.0×10-10·τ-1/2 and 1.1×10-9, respectively, where τ represents the integration time. The sensitivity of NH3 gas monitoring was measured as being 2.3×10-3 Torr · m. Furthermore, spectral measurements obtained by using an optical fiber are also presented.