Highly sensitive tunable diode laser absorption spectroscopy of CO2 around 1.53 m

• Autorzy: Liu Y. , Li B. , Zhai Y. , Wang A.
• Języki publikacji: EN

Abstrakty

EN

The absolute absorption spectrum intensities of carbon dioxide sample have been recorded with a tunable diode laser spectrometer in the spectral range 6506-6520 cm-1, which is suitable for the in situ sensing of carbon dioxide in the lower stratosphere, and were studied using a commercial telecommunication-type diode laser. The intensity of the weakest line we detected in this experiment is 9.116×10-27 cm-1/(moleculeźcm-2) at a pressure of 0.35 torr, and the corresponding absorption is 1.96×10-6 with SNR of 2.67.

Słowa kluczowe

EN

wavelength modulation; diode lasers; absorption spectroscopy

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2006
• Tom: Vol. 36, nr 1
• Strony: 15--22
• Opis fizyczny: Bibliogr. 7 poz.,

Twórcy

autor

Liu Y.

autor

Li B.

autor

Zhai Y.

autor

Wang A.

• Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, 230031 Hefei, China

Bibliografia

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• [4] MALATHY-DEVI V., CHRIS-BENNER D., RINSLAND C.P., SMITH M.A.H., Absolute rovibrational intensities of 12C 16O2 absorption bands in the 3090–3850 cm–1 spectral region, Journal of Quantitative Spectroscopy and Radiative Transfer 60(5), 1998, pp. 741–70.
• [5] SHAO J., GAO X.M., DENG L.H., HUANG W., YANG Y., PEI S.X., YUAN Y.Q., ZHANG W.J., Highly sensitive tunable diode laser absorption spectroscopy of CO2 around 1.31 m, Chinese Physics Letters 21(10), 2004, pp. 1908–10.
• [6] ROTHMAN L.S., HAWKINS R.L., WATTSON R.B., GAMACHE R.R., Energy levels, intensities, and linewidths of atmospheric carbon dioxide bands, Journal of Quantitative Spectroscopy and Radiative Transfer 48(5–6), 1992, pp. 537–66.
• [7] VALERO F.P.J., SUAREZ C.B., Measurement at different temperatures of absolute intensities, line half-widths, and broadening by Ar and N2 for the 3001II ←0000 band of CO2, Journal of Quantitative Spectroscopy and Radiative Transfer 19(6), 1978, pp. 579–90.