Single-shot common-path polarization holographic interferometer for studying flows

Jean Michel Desse; Pascal Picart

doi:10.1117/12.2196201

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24 August 2015 Single-shot common-path polarization holographic interferometer for studying flows

Jean Michel Desse, Pascal Picart

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Proceedings Volume 9660, SPECKLE 2015: VI International Conference on Speckle Metrology; 96601F (2015) https://doi.org/10.1117/12.2196201
Event: SPECKLE 2015: VI International Conference on Speckle Metrology, 2015, Guanajuato, Mexico

Abstract

This paper presents a digital holographic interferometer based on polarization holography. The setup was developed to analyze high density gradient flows. The set-up is less sensitive than a classical Michelson configuration since the test section is crossed only one time. Furthermore, the shadow effect limiting the other techniques is widely reduced. By using an astigmatic configuration, spatial carrier frequencies can be adjusted, so that a single shot and real time capability is obtained. Experimental results for a small supersonic jet when the injection pressure varies demonstrate the proposed approach.

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Jean Michel Desse and Pascal Picart "Single-shot common-path polarization holographic interferometer for studying flows", Proc. SPIE 9660, SPECKLE 2015: VI International Conference on Speckle Metrology, 96601F (24 August 2015); https://doi.org/10.1117/12.2196201

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