Applied Physics B

, Volume 85, Issue 2–3, pp 243–249 | Cite as

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

  • S. Wright
  • G. Duxbury
  • N. Langford


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.


Nitrous Oxide Current Pulse Nitrous Oxide Concentration Atmospheric Spectrum Optical Breadboard 
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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

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

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