Title
Nonlinear Waves In Subwavelength Waveguide Arrays: Evanescent Bands And The "Phoenix Soliton"
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. © 2009 The American Physical Society.
Publication Date
4-23-2009
Publication Title
Physical Review Letters
Volume
102
Issue
16
Number of Pages
-
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1103/PhysRevLett.102.163902
Copyright Status
Unknown
Socpus ID
65549108995 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/65549108995
STARS Citation
Peleg, Or; Segev, Mordechai; Bartal, Guy; Christodoulides, Demetrios N.; and Moiseyev, Nimrod, "Nonlinear Waves In Subwavelength Waveguide Arrays: Evanescent Bands And The "Phoenix Soliton"" (2009). Scopus Export 2000s. 11933.
https://stars.library.ucf.edu/scopus2000/11933