Applied Physics B

, Volume 90, Issue 2, pp 205–211

Multi-mode absorption spectroscopy of oxygen for measurement of concentration, temperature and pressure


DOI: 10.1007/s00340-007-2917-y

Cite this article as:
Arita, Y., Stevens, R. & Ewart, P. Appl. Phys. B (2008) 90: 205. doi:10.1007/s00340-007-2917-y


The use of multi-mode absorption spectroscopy (MUMAS) to detect multiple transitions in the A-band b1Σg+-X3Σg- of molecular oxygen is reported. The modelling of MUMAS signatures and the procedure for fitting such model signatures to experimental data obtained using a multi-mode diode laser is described. The technique is shown to allow accurate and precise measurement of concentration, temperature over the range 300 to 500 K and of pressure over the range 0.2 to 1 bar. Extension of the technique to other ranges of temperature and pressure and to other species is discussed.

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Department of Physics, Clarendon LaboratoryUniversity of OxfordOxfordUK