Signal manipulation with a PT-symmetric coupler embedded into an array of optical waveguides

被引：3
作者：
Suchkov, S. V. [1 ]
Borisov, D. I. [2 ]
Sukhorukov, A. A. [1 ]
Kivshar, Yu. S. [1 ]
机构：
[1] Australia Natl Univ, Nonlinear Phys Ctr, Canberra, ACT 2601, Australia
[2] RAS, Inst Math USC, Ufa 450008, Russia
来源：
LETTERS ON MATERIALS-PIS MA O MATERIALAKH | 2014年 / 4卷 / 04期
基金：
俄罗斯科学基金会;
关键词：
PT-symmetry; waveguide; scattering;
D O I：
10.22226/2410-3535-2014-4-222-225
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the scattering of linear waves in a long waveguide array with a parity-time (PT) - symmetric defect created by two waveguides with balanced gain and loss. We present exact solutions for the scattering of linear waves on such a defect. We reveal that the reflected and transmitted linear waves can be amplified substantially after interaction with the PT-symmetric defect thus allowing an active control of the wave propagating through the array.
引用
收藏
页码：222 / 225
页数：4
相关论文
共 27 条
[11]   Visualization of branch points in PT-symmetric waveguides [J].
Klaiman, Shachar ;
Guenther, Uwe ;
Moiseyev, Nimrod .
PHYSICAL REVIEW LETTERS, 2008, 101 (08)
[12]   Spectral singularities and Bragg scattering in complex crystals [J].
Longhi, S. .
PHYSICAL REVIEW A, 2010, 81 (02)
[13]   Bloch Oscillations in Complex Crystals with PT Symmetry [J].
Longhi, S. .
PHYSICAL REVIEW LETTERS, 2009, 103 (12)
[14]   Beam dynamics in PT symmetric optical lattices [J].
Makris, K. G. ;
El-Ganainy, R. ;
Christodoulides, D. N. ;
Musslimani, Z. H. .
PHYSICAL REVIEW LETTERS, 2008, 100 (10)
[15]   PT-symmetric optical lattices [J].
Makris, Konstantinos G. ;
El-Ganainy, Ramy ;
Christodoulides, Demetrios N. ;
Musslimani, Z. H. .
PHYSICAL REVIEW A, 2010, 81 (06)
[16]   Optical solitons in PT periodic potentials [J].
Musslimani, Z. H. ;
Makris, K. G. ;
El-Ganainy, R. ;
Christodoulides, D. N. .
PHYSICAL REVIEW LETTERS, 2008, 100 (03)
[17]   Analytical solutions to a class of nonlinear Schrodinger equations with PT-like potentials [J].
Musslimani, Ziad H. ;
Makris, Konstantinos G. ;
El-Ganainy, Ramy ;
Christodoulides, Demetrios N. .
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2008, 41 (24)
[18]   Unidirectional nonlinear PT-symmetric optical structures [J].
Ramezani, Hamidreza ;
Kottos, Tsampikos ;
El-Ganainy, Ramy ;
Christodoulides, Demetrios N. .
PHYSICAL REVIEW A, 2010, 82 (04)
[19]   Observation of parity-time symmetry in optics [J].
Rueter, Christian E. ;
Makris, Konstantinos G. ;
El-Ganainy, Ramy ;
Christodoulides, Demetrios N. ;
Segev, Mordechai ;
Kip, Detlef .
NATURE PHYSICS, 2010, 6 (03) :192-195
[20]   Physical realization of PT-symmetric potential scattering in a planar slab waveguide [J].
Ruschhaupt, A ;
Delgado, F ;
Muga, JG .
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2005, 38 (09) :L171-L176
123