Quasi-Talbot effect with vortex beams and formation of vortex beamlet arrays

被引：34

作者：

Knyazev, Boris ^{[1
,2
]}

Kameshkov, Oleg ^{[1
,2
]}

Vinokurov, Nikolay ^{[1
,2
]}

Cherkassky, Valery ^{[2
]}

Choporova, Yulia ^{[1
,2
]}

Pavelyev, Vladimir ^{[3
,4
]}

机构：

[1] Russian Acad Sci, Budker Inst Nucl Phys, Siberian Branch, 11 Lavrentyeva Ave, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Phvs Dept, 2 Pirogova St, Novosibirsk 630090, Russia

[3] Samara Natl Res Univ, 34 Moskovskoye Shosse, Samara 443086, Russia

[4] RAS, Image Proc Syst Inst, Branch FSRC Crystallog & Photon, 151 Molodogvardeyskaya St, Samara 443001, Russia

来源：

OPTICS EXPRESS | 2018年 / 26卷 / 11期

基金：

俄罗斯基础研究基金会; 俄罗斯科学基金会;

关键词：

ORBITAL ANGULAR-MOMENTUM; DOUBLE-SLIT INTERFERENCE; OPTICAL VORTICES; GENERATION; HOLOGRAPHY;

D O I：

10.1364/OE.26.014174

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study diffraction of Bessel vortex beams with topological charges of +/- 1 and +/- 2 and a wavelength of 130 mu m on two-dimensional amplitude periodic gratings. Results of simulations and experiments at the Novosibirsk Free Electron Laser facility show that there appear periodic patterns in the planes corresponding to the classical main and fractional Talbot planes, but instead of self-images of the holes, there are observed periodic lattices of annular vortex microbeams with topological charges corresponding to the charge of the beam illuminating the grating. The ring diameters are the same for beams with different topological charges, but they are proportional to the grating period and inversely proportional to the diameter of the beam illuminating the grating. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：14174 / 14185

页数：12