High rate concentration measurement of molecular gas mixtures using a spatial detection technique

V. Loriot, E. Hertz, B. Lavorel, O. Faucher
2010 Journal of Chemical Physics  
Concentration measurement in molecular gas mixtures using a snapshot spatial imaging technique is reported. The approach consists of measuring the birefringence of the molecular sample when field-free alignment takes place, each molecular component producing a signal with an amplitude depending on the molecular density. The concentration measurement is obtained on a single-shot basis by probing the time-varying birefringence through femtosecond time-resolved optical polarigraphy (FTOP). The
more » ... vance of the method is assessed in air. PACS numbers: 37.
doi:10.1063/1.3427542 fatcat:lgja6fqznzhchhfxlb5cenaw6m