The influence of elevated temperature on Collision induced absorption in gaseous oxygen (O2-O2) and mixtures of oxygen and nitrogen gases (O2-N2) in the wavelength range of 1.06 μm
published by Damascus University
in 2012
in Physics
and research's language is
العربية
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Abstract in English
Collisions induced absorption spectra of pure oxygen and gaseous mixtures
of oxygen and nitrogen were measured at laboratory and studied, in the region
of 1.06 μm, using Cary 5000 spectrophotometer, and White absorption gas cell
with a path length fixed at 9.6 m. The mixing ratio of oxygen in nitrogen were
20%, 50% and 80%, at temperature 298, 323, 348, 373 K and pressures
between 1 and 25 bar. The absorption band was centered at 1.06 μm, and
raised as a wide continuum absorption, and did not show any rotational
structure.
References used
Smith, K. M., Newnham, D. A., 1999. Near-infrared absorption spectroscopy of oxygen and nitrogen gas mixtures. Chemical Physics Letters, Vol. 308, No. 1,pp. 1–6
Paul, D. C., Robert, E. J., Terence, I. Q., 2003. A review of possible optical absorption features of oxygen molecules in the icy surfaces of outer solar system bodies. Planetary and Space Science, Vol. 51, pp. 183–190
Chagas, J. C. S., Newnham, D. A., Smith, K. M., Shine, K. P., 2002. Impact of new measurements of oxygen collision–induced absorption on estimates of short-wave atmospheric absorption. Quarterly Journal of the Royal Meteorological Society, Vol. 128, No. 585, pp. 2380–2383