Abstract

For many years magnetic rotation spectroscopy (MRS) has been used as a sensitive detection technique for various paramagnetic molecular species. [1], [2] A great deal of emphasis has been on nitrous oxide (NO) as a molecule of interest, for example in studies of atmospheric chemistry [3]. Another common paramagnetic molecule is oxygen, of interest for example in combustion studies. We present here results for wavelength modulated MRS of the so-called atmospheric band of oxygen at λ ~ 760nm using a very compact experimental setup based on a semiconductor diode laser operating near room temperature.

© 1997 Optical Society of America