Print Email Facebook Twitter Wavefront shaping through a free-form scattering object Title Wavefront shaping through a free-form scattering object Author Rates, Alfredo (University of Twente) Lagendijk, Ad (University of Twente) Adam, A.J.L. (TU Delft ImPhys/Adam group) IJzerman, Wilbert L. (Eindhoven University of Technology; Signify Research) Vos, Willem L. (University of Twente) Date 2023 Abstract Wavefront shaping is a technique to study and control light transport inside scattering media. Wavefront shaping is considered to be applicable to any complex material, yet in most previous studies, the only sample geometries that are studied are slabs or wave-guides. In this paper, we study how macroscopic changes in the sample shape affect light scattering using the wavefront shaping technique. Using a flexible scattering material, we optimize the intensity of light in a focusing spot using wavefront shaping and record the optimized pattern, comparing the enhancement for different curvatures and beam radii. We validate our hypothesis that wavefront shaping has a similar enhancement regardless of the free-form shape of the sample and thus offers relevant potential for industrial applications. We propose a new figure of merit to evaluate the performance of wavefront shaping for different shapes. Surprisingly, based on this figure of merit, we observe that for this particular sample, wavefront shaping has a slightly better performance for a free-form shape than for a slab shape. To reference this document use: http://resolver.tudelft.nl/uuid:c90ad81d-8b98-43c5-9ded-fdcfc7b48b6e DOI https://doi.org/10.1364/OE.505974 ISSN 1094-4087 Source Optics Express, 31 (26), 43351-43361 Part of collection Institutional Repository Document type journal article Rights © 2023 Alfredo Rates, Ad Lagendijk, A.J.L. Adam, Wilbert L. IJzerman, Willem L. Vos Files PDF oe_31_26_43351.pdf 11.22 MB Close viewer /islandora/object/uuid:c90ad81d-8b98-43c5-9ded-fdcfc7b48b6e/datastream/OBJ/view