Heterodyne holographic interferometry: concentration and temperature measurements in gas mixtures

Heterodyne holographic interferometry is employed to measure refractive-index distributions in transparent media. A system using a He-Ne laser and relatively modest electronic instrumentation is described. The system was used to measure temperature and specie-concentration distribution in natural co...

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Bibliographic Details
Published in:Applied optics (2004) 1982-05, Vol.21 (9), p.1624-1627
Main Authors: Farrell, P V, Springer, G S, Vest, C M
Format: Article
Language:English
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Summary:Heterodyne holographic interferometry is employed to measure refractive-index distributions in transparent media. A system using a He-Ne laser and relatively modest electronic instrumentation is described. The system was used to measure temperature and specie-concentration distribution in natural convection boundary layers in air adjacent to heated surfaces through which a second gas is emitted or injected.
ISSN:1559-128X
DOI:10.1364/AO.21.001624