Authors

R. El-Ganainy; K. G. Makris; M. A. Miri; D. N. Christodoulides;Z. G. Chen

Comments

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Abbreviated Journal Title

Phys. Rev. A

Keywords

OPTICAL BLOCH OSCILLATIONS; AIRY BEAMS; LATTICES; PACKETS; Optics; Physics, Atomic, Molecular & Chemical

Abstract

Within the framework of the tight-binding model we demonstrate that Wannier-Stark states can freely accelerate in uniform optical lattices. As opposed to accelerating Airy wave packets in free space, our analysis reveals that in this case the beam main intensity features self-bend along two opposite hyperbolic trajectories. Two-dimensional geometries are also considered and an asymptotic connection between these Wannier-Stark ladders and Airy profiles is presented.

Journal Title

Physical Review A

Volume

84

Issue/Number

2

Publication Date

1-1-2011

Document Type

Article

Language

English

First Page

6

WOS Identifier

WOS:000294264400018

ISSN

1050-2947

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