Carbon isotopomers measurement using mid-IR tunable laser sources.

نویسندگان

  • Damien Weidmann
  • Chad B Roller
  • Clive Oppenheimer
  • Alan Fried
  • Frank K Tittel
چکیده

Recent developments of two mid-infrared tunable laser spectrometers dedicated to carbon isotope ratio determination are presented. First, a field deployable quantum cascade laser-based sensor is described, along with line selection strategy for (13/12)CO(2) ratio measurements. Secondly, an instrument architecture based on difference frequency generation is presented. The analyses of fundamental limitations, specifically temperature and pressure stability, and water vapor collision broadening, are detailed.

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عنوان ژورنال:
  • Isotopes in environmental and health studies

دوره 41 4  شماره 

صفحات  -

تاریخ انتشار 2005