The Poynting vector and angular momentum of Airy beams

被引：224

作者：

Sztul, H. I.

Alfano, R. R.

机构：

[1] CUNY, Inst Ultrafast Spect & Lasers, DOD Ctr Nanoscale Photon,City Coll, NASA Ctr Optic Sensing & Imaging,Dept Phys, New York, NY 10031 USA

[2] CUNY, Grad Sch, New York, NY 10031 USA

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 13期

关键词：

D O I：

10.1364/OE.16.009411

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We analyze and describe the evolution of the Poynting vector and angular momentum of the Airy beam as it propagates through space. A numerical approach is used to show the Poynting vector follows the tangent line of the direction of propagation. A similar approach is used to show that while the total angular momentum of the Airy beam is zero, the angular momentum of the main intensity peak and the Airy "tail" are non-zero. (C) 2008 Optical Society of America.

引用

页码：9411 / 9416

页数：6

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