Transport model for the propagation of partially coherent, partially polarized, polarization-gradient vector beams

被引:0
作者
Nichols, J. M. [1 ]
Nickel, D., V [1 ]
Rohde, G. K. [2 ]
Bucholtz, F. [3 ]
机构
[1] Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA
[2] Univ Virginia, Dept Elect & Comp Engn, Dept Biomed Engn, 415 Lane Rd, Charlottesville, VA 22903 USA
[3] Jacobs Technol Inc, 2551 Dulles View, Herndon, VA 20171 USA
关键词
ELECTROMAGNETIC BEAM; STOKES PARAMETERS; EQUATIONS; FIELDS; WAVES; LIGHT;
D O I
10.1364/JOSAA.489045
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Recently we predicted and experimentally validated a new physical mechanism for altering the propagation path of a monochromatic beam [Opt. Express 30, 38907 (2022)]. Specifically, we showed that by properly tailoring the spatial distribution of the linear state of polarization transverse to the direction of propagation, the beam followed a curved trajectory in free space. Here we extend the model to the partially coherent and partially polarized polychro-matic case by redefining the beam amplitude, phase, and polarization angle as appropriate statistical quantities. In particular, the definition of polarization angle represents a fundamentally new quantity in modeling beam propagation and is shown to be consistent with recent works on energy and momentum flow. In the new model, the beam curvature matches that of our previous work in the fully coherent case but is predicted to vanish for an unpolarized, spatially incoherent beam. Simulated beam trajectories are shown for varying levels of initial partial coherence and for different polarization profiles. A new class of non-diffracting beams is also suggested by way of example. & COPY; 2023 Optica Publishing Group
引用
收藏
页码:1084 / 1100
页数:17
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