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Spatial light rectification in an optical waveguide lattice

: Dreisow, Felix; Kartashov, Yaroslav V.; Heinrich, Matthias; Vysloukh, Victor A.; Tünnermann, Andreas; Nolte, Stefan; Torner, Lluis; Longhi, Stefano; Szameit, Alexander


epl. A letters journal exploring the frontiers of physics 101 (2013), No.4, Art. 44002, 5 pp.
ISSN: 0302-072X
ISSN: 0295-5075
ISSN: 1286-4854
Journal Article
Fraunhofer IOF ()
waveguide; coupler; array

The rectification of light beams in an optical ratchet is reported. This directed transport is implemented using a photonic mesh lattice consisting of sequences of directional couplers. In such a structure, we observe light propagation at an angle that is independent of the input direction of the injected beam.