Light Transport and Localization in Two-Dimensional Correlated Disorder

被引：78

作者：

Conley, Gaurasundar M. ^{[1
,2
]}

Burresi, Matteo ^{[1
,3
]}

Pratesi, Filippo ^{[1
]}

Vynck, Kevin ^{[1
,4
]}

Wiersma, Diederik S. ^{[1
,3
]}

机构：

[1] Univ Florence, European Lab Nonlinear Spect, I-50019 Sesto Fiorentino, Italy

[2] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

[3] CNR, INO, I-50125 Florence, Italy

[4] CNRS, ESPCI ParisTech, Inst Langevin, F-75238 Paris 05, France

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 14期

基金：

欧洲研究理事会;

关键词：

MULTIPLE-SCATTERING; BROAD-BAND; TRANSITION;

D O I：

10.1103/PhysRevLett.112.143901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Structural correlations in disordered media are known to affect significantly the propagation of waves. In this Letter, we theoretically investigate the transport and localization of light in 2D photonic structures with short-range correlated disorder. The problem is tackled semianalytically using the Baus-Colot model for the structure factor of correlated media and a modified independent scattering approximation. We find that short-range correlations make it possible to easily tune the transport mean free path by more than a factor of 2 and the related localization length over several orders of magnitude. This trend is confirmed by numerical finite-difference time-domain calculations. This study therefore shows that disorder engineering can offer fine control over light transport and localization in planar geometries, which may open new opportunities in both fundamental and applied photonics research.

引用

页数：5

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