Order to disorder optical phase transition in random photonic crystals

被引：4

作者：

Takeda, S. ^{[1
]}

Hamada, S. ^{[1
]}

Peretti, R. ^{[2
]}

Viktorovitch, P. ^{[2
]}

Obara, M. ^{[1
]}

机构：

[1] Keio Univ, Sch Integrated Design Engn, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

[2] Ecole Cent Lyon, Inst Nanotechnol Lyon INL, CNRS, UMR 5270, F-69134 Ecully, France

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2012年 / 106卷 / 01期

关键词：

SLOW-LIGHT; LOCALIZATION; NANOCAVITY; DIFFUSION; LASERS;

D O I：

10.1007/s00340-011-4595-z

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Transition process of optical modal properties induced by the introduction of randomness into random photonic crystals is investigated by a computational method. We analyze an impulse response of two-dimensional triangular photonic crystals, in which the positions of the air holes are slightly deviated to random directions. It is shown that the appropriate degree of random departure from a perfect crystal state gives rise to multiple scattering of low group velocity band-edge modes and supports their strong Anderson localization. The achieved confinement efficiency of light exceeds the one obtained in the perfect photonic crystal state.

引用

页码：95 / 100

页数：6

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