Fig. 1. Experimental schematic of CS₂ tunable diode laser sensor system. CS₂吸收光谱测量实验装置结构图

Fig. 2. The CS₂ absorption spectra obtained from PNNL database. PNNL数据库中CS₂吸收光谱

Fig. 3. The measured N₂O absorption spectrum signal and obtained interference fringes by optical etalon. N₂O吸收光谱信号和标准具干涉条纹

Fig. 4. Voigt fitted line and residual of the CS₂ spectrum at 2180.65676, 2180.69443, 2180.54844, and 2180.55578 cm^–1, respectively. 2180.65676, 2180.69443, 2180.54844和2180.55578 cm^–1处CS₂ Voigt线性拟合结果及残差

Fig. 5. The linear fittd results of line-strength of the CS₂ at 2180.65676, 2180.69443, 2180.54844, and 2180.55578 cm^–1. 2180.65676, 2180.69443, 2180.54844和2180.55578 cm^–1处CS₂ 线强线性拟合结果

Fig. 6. The Voigt fitted results of mixed gas containing 1% CS₂ spectrum at 2180.65676, 2180.69443, 2180.54844, and 2180.55578 cm^–1, respectively. 2180.65676, 2180.69443, 2180.54844和2180.55578 cm^–1处含1% CS₂的混合气体的拟合结果

Fig. 7. Linear fit of Lorenz linewidth for different pressures at 2180.65676, 2180.69443, 2180.54844, and 2180.55578 cm^–1, respectively. 2180.65676, 2180.69443, 2180.54844和2180.55578 cm^–1处不同压力的洛伦兹线宽