Open AccessManipulating spin-dependent splitting of vector abruptly autofocusing beam by encoding cosine-azimuthal variant phases
Author(s) -
Yi Zhang,
Peng Li,
Sheng Liu,
Lei Han,
Hao Cheng,
Jianlin Zhao
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.028409
Subject(s) - azimuth , optics , physics , spatial light modulator , trigonometric functions , polarization (electrochemistry) , phase (matter) , beam (structure) , cardinal point , mathematics , geometry , quantum mechanics , chemistry
We report the realization of spin-dependent splitting of vector abruptly autofocusing beam (AAB) by encoding cosine-azimuthal variant phases. By employing the local spatial frequency (LSF), we reveal an approximation mapping relationship between focal field intensity of the two spin components and the pertinent phase distribution of input field. As well as theoretical analysis, we present experimental demonstrations of this guidance. Special focal field intensity, polarization and phase are realized by consciously managing the cosine-azimuthal variant phase. This distinctive focal field of vector AAB may have a broad range of applications in harnessing the spin-orbit coupling, optical trapping and laser machining.