Title

Nonlinear Waves in Subwavelength Waveguide Arrays: Evanescent Bands and the "Phoenix Soliton"

Authors

Authors

O. Peleg; M. Segev; G. Bartal; D. N. Christodoulides;N. Moiseyev

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Phys. Rev. Lett.

Keywords

OPTICAL BLOCH OSCILLATIONS; GAP SOLITONS; LIGHT; Physics, Multidisciplinary

Abstract

We formulate wave propagation in arrays of subwavelength waveguides with sharp index contrasts and demonstrate the collapse of bands into evanescent modes and lattice solitons with superluminal phase velocity. We find a self-reviving soliton ("phoenix soliton") comprised of coupled forward- and backward-propagating light, originating solely from evanescent bands. In the linear regime, all Bloch waves comprising this beam decay, whereas a proper nonlinearity assembles them into a propagating self-trapped beam. Finally, we simulate the dynamics of such a beam and observe breakup into temporal pulses, indicating a new kind of slow-light gap solitons, trapped in time and in one transverse dimension.

Journal Title

Physical Review Letters

Volume

102

Issue/Number

16

Publication Date

1-1-2009

Document Type

Article

DOI Link

http://dx.doi.org/10.1103/PhysRevLett.102.163902

Language

English

First Page

4

WOS Identifier

WOS:000265479300028

ISSN

0031-9007

Recommended Citation

"Nonlinear Waves in Subwavelength Waveguide Arrays: Evanescent Bands and the "Phoenix Soliton"" (2009). Faculty Bibliography 2000s. 1992.
https://stars.library.ucf.edu/facultybib2000/1992