Three-dimensional vectorial analysis of an electromagnetic non-diffracting high-order Bessel trigonometric beam
- 作者：F.G. Mitri mitri@lanl.gov
- 关键词：Bessel trigonometric beam ; Non-diffracting beam ; Vector analysis
- 刊名：Wave Motion
- 出版年：2012
- 期刊代码：85_01652125
- 类别：ph
- 出版时间：July, 2012
- 卷：49
- 期：5
- 页码：561-568
- 文件大小：2572 K
摘要
The vector wave analysis of a new type of non-diffracting electromagnetic beam, termed as a high-order Bessel trigonometric (non-vortex) beam, that satisfies the three-dimensional Helmholtz equation in free space, is presented stemming from the vector Maxwell鈥檚 equations and Lorenz鈥?gauge condition. Particular emphasis is made for the cases where the ratio of the wave number over its transverse component approaches to unity and largely exceeds it. Computed cross-sectional beam profiles demonstrate the significant differences for the components of the electric and magnetic fields in those two limits. The results are of particular importance in the study of electromagnetic wave scattering and radiation forces of this category of trigonometric beams by particles.