Singular skeleton chains formed by the quasi-plane wave and the Laguerre-Gaussian beam after passing the double-phase-ramp converter

A. Khoroshun, A. Chernikh, A. Riazantsev, O. Ryazantsev, S. Sato, Y. Kozawa, J. Masajada, A. Popiolek-Masajada, M. Szatkowski, A. Bekshaev, A. Ferrando

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A full comparative analysis of the chain of phase singularities generated when a quasi-plane wave and a Gaussian beam pass a double-phase-ramp (DPR) converter is presented based on the theoretical and experimental data. The overall output beam structure includes a system of interrelated optical vortices (OVs) whose linear trajectories form a threedimensional singular skeleton which can be applied for the trapping and guiding of microparticles. An internal structure of each individual phase singularity is characterized by the OV topological charge and by the morphology parameters of the equal intensity ellipses in the OV-core area. The rectilinear equidistant OV trajectories form a chain in the transverse cross section, and their identical morphology parameters can be useful for the applications to metrology and micromanipulation. As a separate result, we consider the DPR-induced transformations of the incident Laguerre-Gaussian beams of the lowest orders and show that the incident multicharged OVs are transformed into small sub-chains of the OVs located in the near-axial region.

Original languageEnglish
Title of host publicationFourteenth International Conference on Correlation Optics
EditorsOleg V. Angelsky
PublisherSPIE
ISBN (Electronic)9781510635104
DOIs
Publication statusPublished - 2020
Event14th International Conference on Correlation Optics 2019 - Chernivtsi, Ukraine
Duration: 2019 Sep 162019 Sep 19

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11369
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference14th International Conference on Correlation Optics 2019
CountryUkraine
CityChernivtsi
Period19/9/1619/9/19

Keywords

  • Double-phase-ramp converter
  • Morphology
  • Optical vortex
  • Quasi-plane wave
  • Singular skeleton

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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