Open AccessDark surface waves in self-focusing media with diffusion and photovoltaic nonlinearities
Author(s) -
Zhonghao Luo,
Fangli Liu,
Yanning Xu,
Haoyu Liu,
Tianhao Zhang,
Jingjun Xu,
Jianguo Tian
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.015075
Subject(s) - optics , physics , surface wave , photorefractive effect , surface (topology) , diffusion , quantum mechanics , geometry , mathematics
Dark surface waves with photorefractive diffusion and photovoltaic nonlinearities are predicted for the first time. We find it is extraordinary that this type of dark surface waves should be in self-focusing media, which is very different from the surface dark solitons or other nonlinear dark surface waves. An oscillator model is proposed by which the above extraordinary phenomenon is demonstrated. In this model an equivalent force function is established, whose form determines the varieties of surface waves (bright surface waves, dark surface waves or others).