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Geometric potential and transport in photonic topological crystals

: Szameit, A.; Dreisow, F.; Heinrich, M.; Keil, R.; Nolte, S.; Tünnermann, A.; Longhi, S.


Physical review letters 104 (2010), No.15, Art. 150403, 4 pp.
ISSN: 0031-9007
ISSN: 1079-7114
Journal Article
Fraunhofer IOF ()

We report on the experimental realization of an optical analogue of a quantum geometric potential for light wave packets constrained on thin dielectric guiding layers fabricated in silica by the femtosecond laser writing technology. We further demonstrate the optical version of a topological crystal, with the observation of Bloch oscillations and Zener tunneling of purely geometric nature.