Polarization analysis of speckle field below its transverse correlation width : application to surface and bulk scattering

Jan Dupont (1) , Xavier Orlik (1) , Ayman Ghabbach (2) , Myriam Zerrad (2) , Gabriel Soriano (2) , Claude Amra (2)

1 ONERA - The French Aerospace Lab [Toulouse]
2 CONCEPT - CONCEPT

An experimental method for accurate polarimetric characteri- zation of speckle field below its transverse correlation width is proposed. Using a polarimetric analyzer, the speckle field under investigation is probed by a set of polarimetric projections describing the full Poincare ́ sphere surface. Spatial polarimetric variations of the speckle field are thus observed with an accuracy of 1% for each Stokes parameter. Moreover, all the experimental data can be guaranteed by a validity criterion. Using white paper sheet and rough metal samples, the method exhibits strong potential to analyze and differentiate speckle fields generated by bulk and surface scattering.

Mots clés: speckle imaging; polarimetric imaging; speckle; polarization; polarimetry

Domaines: Optique [physics.optics]; Instrumentations et Détecteurs [physics.ins-det]; Optique / photonique

Jan Dupont, Xavier Orlik, Ayman Ghabbach, Myriam Zerrad, Gabriel Soriano, et al.. Polarization analysis of speckle field below its transverse correlation width : application to surface and bulk scattering. Optics Express, 2014, pp24133-24141. ⟨10.1364/OE.22.024133⟩. ⟨hal-01096895⟩