Open AccessEffects of Kerr nonlinearity on the band-gap structure of one-dimensional photon ic crystals
Author(s) -
Nian-Hua Liu,
Fu Ji-Wu
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.1418
Subject(s) - kerr effect , band gap , nonlinear system , photon , condensed matter physics , physics , materials science , optics , optoelectronics , quantum mechanics
The effects of Kerr nonlinearity on the band-gap structure of one-dimensional ph otonic crystals was investigated. The photonic band-gap in the nonlinear region can be modulated by changing the intensity. It was found that due to the nonline ar modulation, the electromagnetic eigenmodes of cosine function type go into th e linear gap and become soliton-like modes of hyperbolic secant function type. A number of novel soliton-like electromagnetic modes are found in the gap.