Vector wave analysis of an electromagnetic high-order Bessel vortex beam of fractional type α: II. The cases of standing and quasi-standing waves

被引:7
|
作者
Mitri, F. G. [1 ]
机构
[1] Los Alamos Natl Lab, Acoust & Sensors Technol Team, MPA 11, Los Alamos, NM 87545 USA
来源
OPTIK | 2013年 / 124卷 / 13期
关键词
Bessel beams; Diffraction theory; Electromagnetic optics; Optical laser tweezers; (Quasi-)standing waves; SCATTERING;
D O I
10.1016/j.ijleo.2012.04.024
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Stemming from the vector Maxwell's equations and Lorenz' gauge condition, a full vector-wave derivation for the electric and magnetic fields components of a high-order Bessel vortex beam of fractional type a (HOBVB-F alpha) is provided. The field corresponds to the most generalized case of quasi-standing waves that reduce to perfect (i.e. equi-amplitude) standing waves or progressive waves with appropriate choice of the quasi-standing wave coefficient Y. The results are of particular importance in the study of the optical/electromagnetic wave scattering, radiation force and torque in optical tweezers operating with this fractional type of non-diffracting vortex beams. (C) 2012 Elsevier GmbH. All rights reserved.
引用
收藏
页码:1469 / 1471
页数:3
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