Pressure-shift measurements of the oxygen A-band by Fourier-transform spectroscopy

摘要

The pressure shifts, delta, of the (0-0) band of the b(1)Sigma(g)(+)-X(3)Sigma(g)(-) electronic transition of oxygen (the so-called 'A-band') have been measured at room temperature using high-resolution Fourier transform spectroscopy. The rotational dependence of delta has been measured and characterised: the average value of the shift over the whole band is -0.009+/-0.001 cm(-1) atm(-1). No significant variation in delta is found for different O-2 mixing ratios in N-2, and the results presented here are therefore appropriate for high-resolution atmospheric applications using the O-2 A-band. (C) 2003 Elsevier Science (USA). All rights reserved. [References: 15]