Open AccessSelf-Healing Properties of Partially Coherent Schell-Model Beams
Author(s) -
Gaofeng Wu,
Xiaoyan Pang
Publication year - 2017
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2017.2772350
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
Convolution expression for partially coherent beams that are partially blocked by an opaque obstacle is derived in detail in a paraxial $ABCD$ optical system. The examples are showed to how the formula can be applied to study the self-healing for different beams and different obstructions. In particular, this approach can be used to conveniently deal with any partially coherent Schell-model beams partially blocked by any shape obstacle. Furthermore, the self-healing ability characterization based on the similarity degree of intensity to intensity is proposed. Our method not only can be used to estimate the self-healing ability of beams in theory, but also can be applied to characterize the self-healing ability of beams in experiment. It offers a good and convenient method for investigating or comparing the self-healing ability of different beams, including fully coherent beams and partially coherent beams.