Numerical Approach for Studying the Evolution of the Degrees of Coherence of Partially Coherent Beams Propagation through an ABCD Optical System

被引：19

作者：

Ma, Pujuan ^{[1
,2
,3
,4
]}

Kacerovska, Barbora ^{[5
,6
]}

Khosravi, Raha ^{[6
]}

Liang, Chunhao ^{[1
,2
,3
,4
,6
]}

Zeng, Jun ^{[3
,4
]}

Peng, Xiaofeng ^{[3
,4
]}

Mi, Chenkun ^{[3
,4
]}

Monfared, Yashar E. ^{[7
]}

Zhang, Yuping ^{[8
]}

Wang, Fei ^{[3
,4
]}

Cai, Yangjian ^{[1
,2
,3
,4
]}

机构：

[1] Shandong Normal Univ, Sch Phys & Elect, Shandong Prov Engn & Tech Ctr Light Manipulat, Jinan 250014, Shandong, Peoples R China

[2] Shandong Normal Univ, Sch Phys & Elect, Shandong Prov Key Lab Opt & Photon Device, Jinan 250014, Shandong, Peoples R China

[3] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China

[4] Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Suzhou 215006, Peoples R China

[5] VSB Tech Univ Ostrava, Nanotechnol Ctr, 17 Listopadu 15-2172, Ostrava 70833, Czech Republic

[6] Dalhousie Univ, Dept Elect & Comp Engn, 6299 South St, Halifax, NS B3H 4R2, Canada

[7] Dalhousie Univ, Dept Phys & Atmospher Sci, 6299 South St, Halifax, NS B3H 4R2, Canada

[8] Shandong Univ Sci & Technol, Coll Elect & Informat Engn, Qingdao 266510, Shandong, Peoples R China

来源：

APPLIED SCIENCES-BASEL | 2019年 / 9卷 / 10期

基金：

中国国家自然科学基金;

关键词：

partially coherent beam; degree of coherence; numerical approach; free-space propagation; ILLUMINATION; GENERATION; LATTICES;

D O I：

10.3390/app9102084

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, we propose a numerical approach to simulate the degree of coherence (DOC) of a partially coherent beam (PCB) with a Schell-model correlator in any transverse plane during propagation. The approach is applicable for PCBs whose initial intensity distribution and DOC distribution are non-Gaussian functions, even for beams for which it is impossible to obtain an analytical expression for the cross-spectral density (CSD) function. Based on our approach, numerical examples for the distribution of the DOC of two types of PCBs are presented. One type is the partially coherent Hermite-Gaussian beam. The simulation results of the DOC agree well with those calculated from the analytical formula. The other type of PCB is the one for which it is impossible to obtain an analytical expression of CSD. The evolution of the DOC with the propagation distance and in the far field is studied in detail. Our numerical approach may find potential applications in optical encryption and information transfer.

引用

页数：10

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