Self-guiding in two-dimensional photonic crystals

被引：2

作者：

Chigrin, DN ^{[1
]}

Enoch, S ^{[1
]}

Torres, CMS ^{[1
]}

Tayeb, G ^{[1
]}

机构：

[1] Univ Gesamthsch Wuppertal, Inst Sci Mat, D-42097 Wuppertal, Germany

来源：

PHOTONIC BANDGAP MATERIALS AND DEVICES | 2002年 / 4655卷

关键词：

photonic crystal; ultrarefractive optics; self-guiding; self-collimation;

D O I：

10.1117/12.463861

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Dielectric periodic media can possess a complex photonic band structure with allowed bands displaying strong dispersion and anisotropy. We show that for some frequencies the form of iso-frequency contours mimics the form of the first Brillouin zone of the crystal. A wide angular range of flat dispersion exists for such frequencies. The regions of iso-frequency contours with near zero curvature cancel out diffraction of the light beam, leading to a self-guided (self-collimated) beam.

引用

页码：63 / 72

页数：10

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