Circular grating coupler for creating focused azimuthally and radially polarized beams

被引：62

作者：

Doerr, Christopher R. ^{[1
]}

Buhl, Lawrence L. ^{[1
]}

机构：

[1] Alcatel Lucent, Bell Labs, Holmdel, NJ 07733 USA

来源：

OPTICS LETTERS | 2011年 / 36卷 / 07期

关键词：

LASER;

D O I：

10.1364/OL.36.001209

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show a planar optical circuit design that takes light from an input waveguide and creates a focused azimuthally or radially polarized beam emanating from the surface of the substrate. It is implemented in silicon-on-insulator waveguides and does not require any external components to focus the beam. The focal spot size can be subwavelength and is potentially useful for lithography, imaging, optical data storage, optical trapping, optical excitation of molecules, or coupling to optical fibers. (C) 2011 Optical Society of America

引用

页码：1209 / 1211

页数：3

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