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

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Quasi-Talbot effect with vortex beams and formation of vortex beamlet arrays. / Knyazev, Boris; Kameshkov, Oleg ; Vinokurov, Nikolay et al.

In: Optics Express, Vol. 26, No. 11, 28.05.2018, p. 14174-14185.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{10e1fc62d7b54d0bbcc9a0496bb1548f,

title = "Quasi-Talbot effect with vortex beams and formation of vortex beamlet arrays",

abstract = "We study diffraction of Bessel vortex beams with topological charges of ±1 and ±2 and a wavelength of 130 µm 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.",

keywords = "ORBITAL ANGULAR-MOMENTUM, DOUBLE-SLIT INTERFERENCE, OPTICAL VORTICES, GENERATION, HOLOGRAPHY",

author = "Boris Knyazev and Oleg Kameshkov and Nikolay Vinokurov and Valery Cherkassky and Yulia Choporova and Vladimir Pavelyev",

note = "Publisher Copyright: {\textcopyright} 2018 Optical Society of America",

year = "2018",

month = may,

day = "28",

doi = "10.1364/OE.26.014174",

language = "English",

volume = "26",

pages = "14174--14185",

journal = "Optics Express",

issn = "1094-4087",

publisher = "The Optical Society",

number = "11",

}

RIS

TY - JOUR

T1 - Quasi-Talbot effect with vortex beams and formation of vortex beamlet arrays

AU - Knyazev, Boris

AU - Kameshkov, Oleg

AU - Vinokurov, Nikolay

AU - Cherkassky, Valery

AU - Choporova, Yulia

AU - Pavelyev, Vladimir

PY - 2018/5/28

Y1 - 2018/5/28

N2 - We study diffraction of Bessel vortex beams with topological charges of ±1 and ±2 and a wavelength of 130 µm 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.

AB - We study diffraction of Bessel vortex beams with topological charges of ±1 and ±2 and a wavelength of 130 µm 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.

KW - ORBITAL ANGULAR-MOMENTUM

KW - DOUBLE-SLIT INTERFERENCE

KW - OPTICAL VORTICES

KW - GENERATION

KW - HOLOGRAPHY

UR - http://www.scopus.com/inward/record.url?scp=85047640679&partnerID=8YFLogxK

U2 - 10.1364/OE.26.014174

DO - 10.1364/OE.26.014174

M3 - Article

C2 - 29877459

AN - SCOPUS:85047640679

VL - 26

SP - 14174

EP - 14185

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 11

ER -

ID: 13632231