电波科学学报2017，Vol.32Issue(3)：245-252,8.DOI:10.13443/j.cjors.2017030701
电离层涡旋加热波的传播特性理论分析
Theoretical analysis of propagation characteristics of ionospheric vortex heating waves
摘要
Abstract
Vortex beam heating is a research hotspot in ionospheric heating experimental technique.The existing research work focuses on the analysis and interpretation of experimental phenomena,while there are few discussions about the propagation characteristics and spatial distribution characteristics of vortex heating waves.Based on the Fresnel diffraction theory,the propagation characteristics of vortex beam are analyzed and analytical expression is deduced using the reciprocal conversion between HermitianGaussian mode and Laguerre-Gaussian mode.The invariance of the expression form of vortex beam propagating in free space is proved.Then,the relationship between vortex field distribution and the order of Laguerre-Gaussian mode is studied,and the solving method and formula of peak power direction are derived,which can play a guiding role in achieving the controllable spatial distribution of vortex heating field.The research provides some theoretical guidance for the further study of ionospheric heating with vortex beam.关键词
电离层加热/涡旋电磁场/菲涅尔衍射/近轴近似/拉盖尔-高斯模Key words
ionospheric heating/vortex electromagnetic field/fresnel diffraction/paraxial approximation/laguerre-gaussian mode分类
天文与地球科学引用本文复制引用
崔玉国,郝书吉,满莉..电离层涡旋加热波的传播特性理论分析[J].电波科学学报,2017,32(3):245-252,8.基金项目
国家自然科学基金(No.a171601c01) （No.a171601c01）
