Speckle in BRDF measurements: solid angle considerations

Pierre Chavel (1) , Thomas Labardens (2) , Lionel Simonot (3) , Mathieu Hébert (1) , Yvan Sortais (4) , Gaël Obein (2)

1 LabHC - Laboratoire Hubert Curien
2 LCM-CNAM - Laboratoire commun de métrologie LNE-CNAM
3 PPrime [Poitiers] - Institut Pprime [UPR 3346]
4 IOGS - Institut d'Optique Graduate School

Since the bidirectional reflectance distribution function applies to scattering media, it is inherently prone to speckle. Conditions to average out speckle by integration over solid angle both on the illumination side and on the detection side are analyzed.

Domaines: Optique [physics.optics]

Pierre Chavel, Thomas Labardens, Lionel Simonot, Mathieu Hébert, Yvan Sortais, et al.. Speckle in BRDF measurements: solid angle considerations. 2021 Frontiers in Optics + Laser Science Science conference (FiO+LS 2021), Nov 2021, Washington, United States. pp.JTh5A.76, ⟨10.1364/FIO.2021.JTh5A.76⟩. ⟨hal-04563953⟩