About: Quasi-Bessel beam generated by oblate-tip axicon     Goto   Sponge   NotDistinct   Permalink

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Description
  • V příspěvku jsme se soustředili na reálný tvar vrcholu axiconu, který se užívá pro generaci besselovských svazků. Pomocí simulací a experimentů jsme určili, že i malé zaoblení vrcholu axiconu výrazně naruší tvar a unikátní vlastnosti generovaného svazku. Ukázali jsme, že prostorová filtrace svazku ve Fourierově rovině odstranila oscilace v intenzitě svazku způsobené zaoblením vrcholu axiconu. (cs)
  • We focused here on the real shape of the tip of the axicon - which is not sharp but rather oblate. We simulated numerically and verified experimentally that tiny deviations of the tip shape from the ideal sharp profile induce significant oscillations of the beam intensity along its propagation. Such unwanted intensity modulation disturbs the unique properties of the quasi-Bessel beam - constant shape of the lateral intensity profile and especially slow variation of the on-axis intensity along the beam propagation. We demonstrate how the spatial filtration of the beam in the Fourier plane removes such undesired modulation and restores the properties of the quasi-Bessel beam.
  • We focused here on the real shape of the tip of the axicon - which is not sharp but rather oblate. We simulated numerically and verified experimentally that tiny deviations of the tip shape from the ideal sharp profile induce significant oscillations of the beam intensity along its propagation. Such unwanted intensity modulation disturbs the unique properties of the quasi-Bessel beam - constant shape of the lateral intensity profile and especially slow variation of the on-axis intensity along the beam propagation. We demonstrate how the spatial filtration of the beam in the Fourier plane removes such undesired modulation and restores the properties of the quasi-Bessel beam. (en)
Title
  • Quasi-Bessel beam generated by oblate-tip axicon
  • Kvazi Besselovské svazky generované axiconem s oblým vrcholem (cs)
  • Quasi-Bessel beam generated by oblate-tip axicon (en)
skos:prefLabel
  • Quasi-Bessel beam generated by oblate-tip axicon
  • Kvazi Besselovské svazky generované axiconem s oblým vrcholem (cs)
  • Quasi-Bessel beam generated by oblate-tip axicon (en)
skos:notation
  • RIV/68081731:_____/08:00319125!RIV09-AV0-68081731
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(FT-TA2/059), P(LC06007), P(OC08034), Z(AV0Z20650511)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 391281
http://linked.open...ai/riv/idVysledku
  • RIV/68081731:_____/08:00319125
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Bessel beam; non-diffracting beam; Fourier optics (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [4FFAAE1A96C2]
http://linked.open...v/mistoKonaniAkce
  • Polanica Zdrój
http://linked.open...i/riv/mistoVydani
  • Bellingham
http://linked.open...i/riv/nazevZdroje
  • 16th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics. (Proceedings of SPIE Vol. 7141)
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Brzobohatý, Oto
  • Zemánek, Pavel
  • Čižmár, Tomáš
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
http://purl.org/ne...btex#hasPublisher
  • SPIE
https://schema.org/isbn
  • 978-0-8194-7383-7
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