Applied Physics B

, Volume 85, Issue 2, pp 243–249

A compact quantum-cascade laser based spectrometer for monitoring the concentrations of methane and nitrous oxide in the troposphere


DOI: 10.1007/s00340-006-2384-x

Cite this article as:
Wright, S., Duxbury, G. & Langford, N. Appl. Phys. B (2006) 85: 243. doi:10.1007/s00340-006-2384-x


A spectrometer, based on the frequency down-chirped radiation from a pulsed quantum-cascade laser, capable of detecting fluctuations in local ground level methane and nitrous oxide concentrations over a time scale of minutes, is presented. The applicability of this instrument to low-level atmospheric detection is demonstrated through sampling gases in two locations.

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Scottish University Physics Alliance, Department of Physics, John Anderson BuildingUniversity of StrathclydeGlasgowUK