|Table of Contents|

Anderson localization in random and Fabonacci quasi-periodic binary waveguide array

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2016年03期
Page:
354-
Research Field:
Publishing date:

Info

Title:
Anderson localization in random and Fabonacci quasi-periodic binary waveguide array
Author(s):
Yin Cheng1Xu Tian2Shan Minglei1Chen Bingyan1Han Qingbang1Zhu Changping1
1.Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology,Hohai University, Changzhou 213022,China; 2.College of Science,Nantong University,Nantong 226007,China
Keywords:
Anderson localization random sequence Fibonacci sequence binary waveguide arrays transfer matrix method transition localization length electrical field one-dimensional rectangular microwaves waveguide
PACS:
O441.4
DOI:
10.14177/j.cnki.32-1397n.2016.40.03.018
Abstract:
In order to investigate the effect of correlation on Anderson localization in electromagnetic waves,a random one-dimensional binary waveguide array is proposed based on a random binary sequence,and a quasi-periodic one-dimensional binary waveguide array is proposed based on a Fibonacci sequence.The transition,localization length and the spectra of the electrical field amplitude of tranverse electric(TE)mode for the two one-dimensional binary waveguide arrays are calculated using transfer matrix method.Experiments are carried out using one-dimensional rectangular microwaves waveguide structure.The peaks of transmission spectrum of the random one-dimensional binary waveguide array proposed based on a random binary sequence are identical with those of periodic waveguide arrays,the modes near the band edges become localized; the propagation characteristics of the quasi-periodic one-dimensional binary waveguide array proposed based on a Fibonacci sequence is independent of its basic unit, and electromagnetic energy is transferred discretely through the coupling between the spatial distributed localizations.

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Last Update: 2016-06-30