文献类型：期刊文献

英文题名：Tricomi beams and nondiffracting sheet beams

作者：Zhu, Jie Zhu, Kaicheng Ding, Nan Wang, Taofen

第一作者：朱洁

通信作者：Wang, TF[1]

机构：[1]Guizhou Inst Technol, Coll Sci, Guiyang 550003, Peoples R China;[2]Guangzhou Coll Technol & Business, Sch Engn, Guangzhou 510850, Peoples R China;[3]Cent South Univ, Sch Phys & Elect, Changsha 410083, Peoples R China;[4]Hunan Univ Sci & Technol, Sch Phys, Xiangtan 416003, Peoples R China

第一机构：贵州理工学院理学院

通信机构：corresponding author), Hunan Univ Sci & Technol, Sch Phys, Xiangtan 416003, Peoples R China.

年份：2021

卷号：28

外文期刊名：RESULTS IN PHYSICS

收录：;Scopus(收录号：2-s2.0-85111829030);WOS:【SCI-EXPANDED(收录号:WOS:000689298100001)】；

基金：This research is supported by Science and technology fund of Guizhou Province, grant number [2020]1Y025.

语种：英文

外文关键词：Nondiffracting beams; Angular spectrum function; Helmholtz equation; Sheet beams

摘要：We introduce a non-diffracting beam family as a new beam solution of the scalar Helmholtz equation in Cartesian coordinates whose complex amplitude is mainly described by the Tricomi functions and characterized by four parameters. Based on the proposed beam model, the on-axial, off-axial, and asymmetrical Bessel beams can be obtained as special cases through appropriate selection of the complex parameters. We show that both the intensity and phase distributions can be tailored in a controlled manner through modulation of the angular spectra in the frequency space, enabling the transverse intensity pattern to be varied from a concentric ring structure, through a concentric arc configuration, to a single sheet pattern with different orientations and central positions.