Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 15: Poster: Quantum Optics and Photonics I
Q 15.82: Poster
Montag, 23. März 2015, 17:00–19:00, C/Foyer
Programming quantum interference in scattering materials — •Tom A.W. Wolterink, Georgios Ctistis, Simon R. Huisman, Thomas J. Huisman, Allard P. Mosk, and Pepijn W.H. Pinkse — MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands
Wavefront shaping allows for ultimate control of light propagation in multiple-scattering media by adaptive manipulation of incident waves. We have demonstrated a method to program general multiport linear optical circuits in multiple-scattering materials by phase modulation of incident wavefronts. Applying this method to quantum light makes it possible to use these optical circuits for adaptive quantum optical experiments, with high flexibility in the control of quantum interference between multiple optical modes.
To this end we have constructed a bright single-photon source, producing heralded single-photon states with a measured production rate of > 106 s−1. We have demonstrated that we are able to control the propagation of these single-photon states in random-scattering media, and we are currently investigating Hong-Ou-Mandel interference in these circuits.