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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 4 — Feb. 15, 2014
  • pp: 1065–1068

Observation of accelerating Wannier–Stark beams in optically induced photonic lattices

Xinyuan Qi, Konstantinos G. Makris, Ramy El-Ganainy, Peng Zhang, Jintao Bai, Demetrios N. Christodoulides, and Zhigang Chen  »View Author Affiliations


Optics Letters, Vol. 39, Issue 4, pp. 1065-1068 (2014)
http://dx.doi.org/10.1364/OL.39.001065


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Abstract

We generate optical beams analogous to the Wannier–Stark states in semiconductor superlattices and observe that the two main lobes of the WS beams self-bend (accelerate) along two opposite trajectories in a uniform one-dimensional photonic lattice. Such self-accelerating features exist only in the presence of the lattice and are not observed in a homogenous medium. Under the action of nonlinearity, however, the beam structure and acceleration cannot be preserved. Our experimental observations are in qualitative agreement with theoretical predictions.

© 2014 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(230.6120) Optical devices : Spatial light modulators
(350.5500) Other areas of optics : Propagation

ToC Category:
Materials

History
Original Manuscript: October 17, 2013
Revised Manuscript: December 16, 2013
Manuscript Accepted: January 12, 2014
Published: February 14, 2014

Citation
Xinyuan Qi, Konstantinos G. Makris, Ramy El-Ganainy, Peng Zhang, Jintao Bai, Demetrios N. Christodoulides, and Zhigang Chen, "Observation of accelerating Wannier–Stark beams in optically induced photonic lattices," Opt. Lett. 39, 1065-1068 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-4-1065

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