Optical Sciences

Biomolecules and nanostructures

The Optical Sciences group studies the interaction of light and matter. Our current focus is on detection and sensing/imaging with an emphasis on the development of integrated photonics. We are part of Twente University's Department of Science and Technology and member of the MESA+ institute.

 

Programming balanced optical beam splitters in white paint

(full pdf)

Simon R. Huisman, Thomas J. Huisman, Sebastianus A. Goorden, Allard P. Mosk, and Pepijn W. H. Pinkse
Optics Express
vol. 22 issue 7 p. 8320-8332 april 1, 2014
doi:10.1364/OE.22.008320

Wavefront shaping allows for ultimate control of light propagation in multiple-scattering media by adaptive manipulation of incident waves. We shine two separate wavefront-shaped beams on a layer of dry white paint to create two enhanced output spots of equal intensity. We experimentally confirm by interference measurements that the output spots are almost correlated like the two outputs of an ideal balanced beam splitter. The observed deviations from the phase behavior of an ideal beam splitter are analyzed with a transmission matrix model. Our experiments demonstrate that wavefront shaping in multiple-scattering media can be used to approximate the functionality of linear optical devices with multiple inputs and outputs.
© 2014 Optical Society of America
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