Research on absorption spectroscopy of CH4 around 1,315um

• Autorzy: Shao J. , Gao X. , Deng L. , Huang W. , Yang Y. , Pei S. , Yuan Y. , Zhang W.
• Języki publikacji: EN

Abstrakty

EN

Measurements have been made about the absorption features of Ch4 around 1.315 um by using the second harmonic detwction technique of tunable diode laser with multipass cell (white). Studies concerning the second harmonic detecyion technique of CH_{4 around 1.65 um have been widely reported currently, but reports about the absorption features in NIR spectra of CH4 around 1.315 um can scarcely be found. We have performed a detailed study about the absorption features of CH4 around 1.315 um and we presents the results here. We give the line positions, the line intensties and self-broadening coefficients near 1.315 um at a pressure of 0.077 torr.}

Słowa kluczowe

EN

modulation spectroscopy; diode lasers; second harmonic detection

PL

dioda laserowa; modulacja spektroskopowa

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2005
• Tom: Vol. 35, nr 1
• Strony: 155--162
• Opis fizyczny: Bibliogr. 7 poz., tab., wykr.

Twórcy

autor

Shao J.

• Laboratory of Atmospheric Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China
• Environmental Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China

autor

Gao X.

• Laboratory of Atmospheric Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China
• Environmental Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China

autor

Deng L.

• Laboratory of Atmospheric Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China
• Environmental Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China

autor

Huang W.

• Environmental Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China

autor

Yang Y.

• Environmental Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China

autor

Pei S.

• Environmental Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China

autor

Yuan Y.

• Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China

autor

Zhang W.

• Environmental Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China

Bibliografia

• [1] GAO XIAOMING, HUANG WEI, LI ZIYAO, FANG LI, ZHANG WEIJUN, Sensitive detection of CO2 molecule using near infrared diode laser absorption spectroscopy, Acta Optica Sinica 23(5), 2003, pp. 609–11.
• [2] KLUCZYNSKI P., GUSTAFSSON J., LINDBERG A.M., AXNER O., Wavelength modulation absorption spectrometry – an extensive scrutiny of the generation of signals, Spectrochimica Acta Part B: Atomic Spectroscopy 56(8), 2001, pp. 1277–354.
• [3] AXNER O., KLUCZYNSKI P., LINDBERG A.M., A general non-complex analytical expression for the nth Fourier component of a wavelength-modulated Lorentzian lineshape function, Journal of Quantitative Spectroscopy and Radiative Transfer 68(3), 2001, pp. 299–317.
• [4] LI QIAN, XIAO LIANTUAN, LI CHANGYONG, JIA SUOTANG, ZHOU GUOSHENG, Theoretical and experimental investigation of low-frequency wavelength modulation spectroscopy, Acta Optica Sinica 21(3), 2001, pp. 317–19.
• [5] YELLESWARAPU C., SHARMA A., A simple technique for indirect measurement of absorption line widths in Voigt profile regime, Journal of Quantitative Spectroscopy and Radiative Transfer 72(5), 2002, pp. 733–40.
• [6] IKUTA K., YOSHIKANE N., VASA N., OKI Y., MAEDA M., UCHIUMI M., TSUMURA Y., NAKAGAWA J., KAWADA N., Differential absorption lidar at 1.67 m for remote sensing of methane leakage, Japanese Journal of Applied Physics, Part 1 Regular Papers, Short Notes and Review Papers 38(1A), 1999, pp. 110–14.
• [7] WERLE P., A review of recent advances in semiconductor laser based gas monitors, Spectrochimica Acta, Part A Molecular and Biomolecular Spectroscopy 54A(2), 1998, pp. 197–236.