Transmission of vector vortex beams in dispersive media

Ilaria Gianani, Alessia Suprano, Taira Giordani, Nicolò Spagnolo, Fabio Sciarrino, Dimitris Gorpas, Vasilis Ntziachristos, Katja Pinker, Netanel Biton, Judy Kupferman, Shlomi Arnon

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

Scattering phenomena affect light propagation through any kind of medium from free space to biological tissues. Finding appropriate strategies to increase the robustness to scattering is the common requirement in developing both communication protocols and imaging systems. Recently, structured light has attracted attention due to its seeming scattering resistance in terms of transmissivity and spatial behavior. Moreover, correlation between optical polarization and orbital angular momentum (OAM), which characterizes the so-called vector vortex beams (VVBs) states, seems to allow for the preservation of the polarization pattern. We extend the analysis by investigating both the spatial features and the polarization structure of vectorial optical vortexes propagating in scattering media with different concentrations. Among the observed features, we find a sudden swift decrease in contrast ratio for Gaussian, OAM, and VVB modes for concentrations of the adopted scattering media exceeding 0.09%. Our analysis provides a more general and complete study on the propagation of structured light in dispersive and scattering media.

Original languageEnglish
Article number036003
JournalAdvanced Photonics
Volume2
Issue number3
DOIs
StatePublished - 1 May 2020

Keywords

  • Optical polarization
  • Orbital angular momentum
  • Scattering phenomena
  • Turbulent media
  • Vector vortex beams

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