Local probing of Bloch mode dispersion in a photonic crystal waveguide

被引：29

作者：

Engelen, RJP

Karle, TJ

Gersen, H

Korterik, JP

Krauss, TF

Kuipers, L

van Hulst, NF

机构：

[1] Univ Twente, Dept Sci & Technol, Appl Opt Grp, NL-7500 AE Enschede, Netherlands

[2] Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands

[3] Univ St Andrews, Sch Phys & Astron, Ultrafast Photon Collaborat, St Andrews KY16 9SS, Fife, Scotland

[4] FOM, Inst Atom & Mol Phys, NL-1098 SJ Amsterdam, Netherlands

来源：

OPTICS EXPRESS | 2005年 / 13卷 / 12期

关键词：

D O I：

10.1364/OPEX.13.004457

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The local dispersion relation of a photonic crystal waveguide is directly determined by phase-sensitive near-field microscopy. We readily demonstrate the propagation of Bloch waves by probing the band diagram also beyond the first Brillouin zone. Both TE and TM polarized modes were distinguished in the experimental band diagram. Only the TE polarized defect mode has a distinctive Bloch wave character. The anomalous dispersion of this defect guided mode is demonstrated by local measurements of the group velocity. The measured dispersion relation and measured group velocities are both in good agreement with theoretical calculations. (C) 2005 Optical Society of America.

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收藏

页码：4457 / 4464

页数：8

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