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

6533b858fe1ef96bd12b5b30

RESEARCH PRODUCT

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

Edouard Hertz Bruno Lavorel Olivier Faucher Vincent Loriot

subject

High rate Birefringence Molecular alignment [PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph]Chemistry Time resolved spectra [ PHYS.PHYS.PHYS-ATOM-PH ] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph]Analytical chemistry Physics::Optics General Physics and Astronomy 37.10 Vz 42.50 Hz 42.50 Md 01 natural sciences 010305 fluids & plasmas Femtosecond laser Single-shot Amplitude Optical polarigraphy 0103 physical sciences Femtosecond Molecular Density Imaging technique Physical and Theoretical Chemistry [PHYS.PHYS.PHYS-ATOM-PH] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph]Concentration measurement 010306 general physics

description

International audience; 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 relevance of the method is assessed in air.

year	journal	country	edition	language
2010-05-13

https://hal.science/hal-00503040

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