1. The effect of collisions with nitrogen on absorption by oxygen in the a-band using cavity ring-down spectroscopy
- Author
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N. N. Filippov, M. B. Kiseleva, Frans R. Spiering, Adriaan M.H. van der Veen, Wim J. van der Zande, Bas van Lieshout, Molecular and Biophysics, Institute for Molecules and Materials (IMM), Institute of Physics, Czech Academy of Sciences [Prague] (CAS), and Nederlands Meetinstituut
- Subjects
Tunable diode laser absorption spectroscopy ,010304 chemical physics ,010504 meteorology & atmospheric sciences ,Absorption spectroscopy ,Molecular and Biophysics ,Chemistry ,Biophysics ,Condensed Matter Physics ,Laser ,01 natural sciences ,law.invention ,Cavity ring-down spectroscopy ,Dipole ,law ,Extinction (optical mineralogy) ,Physical Sciences ,0103 physical sciences ,[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] ,Physical and Theoretical Chemistry ,Atomic physics ,Spectroscopy ,Absorption (electromagnetic radiation) ,Molecular Biology ,0105 earth and related environmental sciences - Abstract
International audience; This paper reports on the effect of collisions between nitrogen and oxygen on absorption in the A-band near 760 nm under atmospheric conditions relevant for satellite retrieval studies. We use pulsed laser cavity ring-down spectroscopy with a narrow bandwidth laser and use pressure scans to increase the accuracy of the measured oxygen extinction coefficients. We use the so-called Adjustable Branch Coupling model to describe line mixing in the magnetic allowed A-Band dipole absorption and we retrieve the collision induced absorption spectrum due to N$_2$-O$_2$ collisions.
- Published
- 2011
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