Beam steering in planar-photonic crystals: From superprism to supercollimator

被引：152

作者：

Wu, LJ ^{[1
]}

Mazilu, M ^{[1
]}

Krauss, TF ^{[1
]}

机构：

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

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2003年 / 21卷 / 02期

关键词：

angular dispersion; loss; planar-photonic crystals; self-collimating phenomena;

D O I：

10.1109/JLT.2003.808773

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We utilize the anomalous dispersion of planar-photonic crystals (PhCs) near the dielectric band edge to control the wavelength-dependent propagation of light. Light beams with up to 20degrees divergence were collimated over a 25-nm (1285 nm to 1310 nm) bandwidth using a triangular lattice. The "super-prism" phenomenon is demonstrated in the same configuration, simply by tuning the wavelength. Sources of loss are discussed. Both the plane-wave expansion calculation and finite-difference time-domain simulation match well with the experimental results. This is the first experimental demonstration of self-collimating phenomena in a PhC configuration.

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收藏

页码：561 / 566

页数：6

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