1. Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China 2. Environmental Spectroscopy Laboratory of Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
Abstract：Fifteen new absorption lines were observed when studying CO2 absorption spectroscopy by wavelength modulation (WM) technique with a DFB laser. The line intensity we can detect is 2.251 63×10-27 cm-1·(moleculecm-2)-1 at 6.67×10２ Pa pressure, corresponding to an absorbance of 3.88×10-8. The overtone spectra of CO2 around 1.31 μm have been measured with a tunable diode laser and the corresponding spectral parameters (positions, intensities, and self-broadening coefficients) are presented.
[1] ZHANG Xiang-hui, CHEN Jin-hai, PENG Qi, et al(张向辉，陈金海，彭 其, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2001，21(3)：257. [2] GU Hui-ming(谷怀民)，Alan Zhang，Acta Photonica Sinica(光子学报)，2003，32：1013. [3] WU Sheng-hai, ZHUANG Hua, YANG Xiao-hua, et al(吴升海，庄 华，杨晓华, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2002，22(4)：569. [4] Mantz A W. Sepctrochimica Acta Part A, 1995, 51：2211. [5] ZHANG Jia-min, ZHANG Xiang-hui, CHEN Jin-hai, et al(张佳民，张向辉，陈金海, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2003，23(2)：213. [6] Abbmk S, H, Lub T T, Smit H C. Analytics Chemical Acta, 1990, 241：83. [7] Gustafsson J, Chekalin N, Axner O. Spectrochimica Acta Part B, 2003, 58：123. [8] David W S, Mark W, et al. J. Quant. Spectrosc. Radiat. Transfer,1995, 54：815. [9] Goldman A., Stephen T.M., et al., J. Quant. Spectrosc. Radiat. Transfer, 2003, 82：197. [10] Kluczynski P, Gustafsson J, et al. Spectrochimica Acta Part B, 2001, 56：1277. [11] Mazzotti D, Giusfredi G, et al., Optics and Lasers in Engineering, 2002, 37: 143. [12] Puzzarini C, Dore L, Cazzoli G. J. Mol. Spectroc., 2002, 216：428. [13] Dharamsi A N. Appl. Phys., 1996, 29：540. [14] Rothman L S, et al. J. Quant. Spectros. Radiat. Transfer, 1992, 48: 537. [15] Rothman L S, Gamache R R, Goldman A, et al. Appl. Opt., 1987, 26：4058.
