Format

Send to

Choose Destination
See comment in PubMed Commons below
Opt Express. 2011 Feb 28;19(5):4030-5. doi: 10.1364/OE.19.004030.

Defect solitons in parity-time periodic potentials.

Author information

  • 1School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, China.

Abstract

In this article, properties of solitons in a parity-time periodical lattices with a single-sited defect are investigated. Both of the negative and positive defects are considered. Linear stability analyses show that, when the defect is positive, in the semi-infinite gap, the solitons are always stable, while in the first gap, the solitons are unstable in most of their existence region except for those near the edge of the second band; when the defect is negative, in the semi-infinite gap, other than those near the edge of the first band, most solitons are stable, but in the first gap, all solitons are unstable. Such stability analyses are corroborated by numerical simulations.

PMID:
21369230
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Loading ...
    Write to the Help Desk