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Bessel beams with spatial oscillating polarization.

Shiyao Fu1, Shikun Zhang1, Chunqing Gao1

  • 1School of Opto-Electronics, Beijing Institute of Technology, Beijing 100081, China.

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|August 5, 2016
PubMed
Summary
This summary is machine-generated.

Researchers created a novel Bessel-type vector beam with polarization that oscillates along the optical axis. This new beam generation technique has potential applications in optical metrology and material processing.

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Area of Science:

  • Optics and Photonics
  • Applied Physics

Background:

  • Bessel beams are valuable in optical metrology due to their extended Rayleigh range.
  • Radial/azimuthal polarization of light is crucial for applications like material processing and plasma absorption.

Purpose of the Study:

  • To present an experimental setup for generating a Bessel-type vector beam with spatial polarization oscillating along the optical axis.
  • To explore the conversion of a linearly polarized Bessel beam into a spatially oscillating polarized beam.

Main Methods:

  • Utilized a holographic axicon (HA) setup with two stages (HA1 and HA2).
  • HA1 generated a linearly polarized Bessel beam.
  • HA2 converted the beam into a spatially oscillating polarized beam.

Main Results:

  • Successfully generated a Bessel-type vector beam with polarization oscillating along the optical axis.
  • Detailed experimental results and theoretical discussion of the setup are provided.

Conclusions:

  • The presented experimental setup effectively produces Bessel-type vector beams with unique polarization properties.
  • This technique offers a new tool for applications requiring controlled polarization in optical beams.