Slow-light vortices in periodic waveguides

被引：15

作者：

Sukhorukov, Andrey A. ^{[1
,2
]}

Ha, Sangwoo ^{[1
,2
]}

Desyatnikov, Anton S. ^{[1
,2
]}

Lavrinenko, Andrei V. ^{[3
]}

Kivshar, Yuri S. ^{[1
,2
]}

机构：

[1] Australian Natl Univ, Res Sch Phys & Engn, Nonlinear Phys Ctr, Canberra, ACT 0200, Australia

[2] Australian Natl Univ, Res Sch Phys & Engn, CUDOS, Canberra, ACT 0200, Australia

[3] Tech Univ Denmark, DTU Foton, Dept Photon Engn, NanoDTU, DK-2800 Kongens Lyngby, Denmark

来源：

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2009年 / 11卷 / 09期

关键词：

photonic crystal waveguide; optical vortex; optical power flow; PHOTONIC-CRYSTAL; BAND; ENHANCEMENT; DISPERSION;

D O I：

10.1088/1464-4258/11/9/094016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We reveal that the reduction of the group velocity of light in periodic waveguides is generically associated with the presence of circulating energy flows or optical vortices. We show that the energy flows are gradually frozen for slow-light at the Brillouin zone edge, whereas vortices persist for slow-light states having non-vanishing phase velocity inside the Brillouin zone. We also demonstrate that the presence of vortices can be linked to the absence of slow-light at the zone edge, and the presented calculations illustrate these general results.

引用

页数：6

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