Hannover 2010 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 47: Photonics I
Q 47.4: Vortrag
Donnerstag, 11. März 2010, 12:00–12:15, F 128
Geometric Spin Hall Effect of Light — •Jan Korger1,2, Christian Gabriel1,2, Peter Banzer1,2, Andrea Aiello1,2, Ulrik Andersen1,3, Christoph Marquardt1,2, and Gerd Leuchs1,2 — 1MPI für die Physik des Lichts, Erlangen, Deutschland — 2Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, Deutschland — 3Technical University of Denmark, Kongens Lyngby, Dänemark
We describe a novel fundamental optical phenomenon and report on experimental progress towards its verification.
The effect occurs when a collimated beam is detected in a plane tilted with respect to the direction of propagation and amounts to a shift of the barycenter of the Poynting vector distribution. This shift depends on the state of polarization and tilting angle of the detector plane. It occurs whenever the beam possesses a nonzero transverse angular momentum. Unlike the conventional Spin Hall Effect of Light (SHEL) the effect we demonstrate is only determined by the geometry of the system and occurs in vacuum.
We present experimental techniques to measure the effect using conventional detectors, which are not sensitive to the Poynting vector but to the electric field density. Preliminary data is discussed and compared to numerical and analytical computations.