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- Bessel_beam abstract "A Bessel beam is a field of electromagnetic, acoustic or even gravitational radiation whose amplitude is described by a Bessel function of the first kind. A true Bessel beam is non-diffractive. This means that as it propagates, it does not diffract and spread out; this is in contrast to the usual behavior of light (or sound), which spreads out after being focussed down to a small spot. Bessel beams are also self-healing, meaning that the beam can be partially obstructed at one point, but will re-form at a point further down the beam axis.As with a plane wave a true Bessel beam cannot be created, as it is unbounded and would require an infinite amount of energy. Reasonably good approximations can be made, however, and these are important in many optical applications because they exhibit little or no diffraction over a limited distance. Approximations to Bessel beams are made in practice by focusing a Gaussian beam with an axicon lens to generate a Bessel-Gauss beam, by axisymmetric diffraction gratings, or by placing a narrow annular aperture in the far field.".
- Bessel_beam thumbnail Bessel_beam.svg?width=300.
- Bessel_beam wikiPageExternalLink science-environment-12620560.
- Bessel_beam wikiPageExternalLink a_2006.12.12_ieee_uffc02apr_cover.pdf.
- Bessel_beam wikiPageExternalLink 18138.
- Bessel_beam wikiPageID "9071326".
- Bessel_beam wikiPageLength "10618".
- Bessel_beam wikiPageOutDegree "23".
- Bessel_beam wikiPageRevisionID "675424709".
- Bessel_beam wikiPageWikiLink Airy_beam.
- Bessel_beam wikiPageWikiLink Axicon.
- Bessel_beam wikiPageWikiLink Beam_axis.
- Bessel_beam wikiPageWikiLink Bessel_function.
- Bessel_beam wikiPageWikiLink Bessel_function_of_the_first_kind.
- Bessel_beam wikiPageWikiLink Bessels_differential_equation.
- Bessel_beam wikiPageWikiLink Category:Laser_science.
- Bessel_beam wikiPageWikiLink Diffraction.
- Bessel_beam wikiPageWikiLink Energy.
- Bessel_beam wikiPageWikiLink Far_field.
- Bessel_beam wikiPageWikiLink Gaussian_beam.
- Bessel_beam wikiPageWikiLink Helmholtz_equation.
- Bessel_beam wikiPageWikiLink Laplaces_equation.
- Bessel_beam wikiPageWikiLink Mathematics.
- Bessel_beam wikiPageWikiLink Near_and_far_field.
- Bessel_beam wikiPageWikiLink Optical_axis.
- Bessel_beam wikiPageWikiLink Optical_tweezers.
- Bessel_beam wikiPageWikiLink Optics.
- Bessel_beam wikiPageWikiLink Plane_wave.
- Bessel_beam wikiPageWikiLink Radiation_pressure.
- Bessel_beam wikiPageWikiLink Velocity.
- Bessel_beam wikiPageWikiLink Wikt:occlusion.
- Bessel_beam wikiPageWikiLink X-wave.
- Bessel_beam wikiPageWikiLink File:Bessek_beam_intensity.svg.
- Bessel_beam wikiPageWikiLink File:Bessel_beam.svg.
- Bessel_beam wikiPageWikiLink File:Bessel_beam_reform.svg.
- Bessel_beam wikiPageWikiLinkText "Bessel beam".
- Bessel_beam wikiPageWikiLinkText "Gauss-Bessel beams".
- Bessel_beam wikiPageWikiLinkText "bessel beam".
- Bessel_beam hasPhotoCollection Bessel_beam.
- Bessel_beam wikiPageUsesTemplate Template:Reflist.
- Bessel_beam subject Category:Laser_science.
- Bessel_beam hypernym Field.
- Bessel_beam type Laser.
- Bessel_beam comment "A Bessel beam is a field of electromagnetic, acoustic or even gravitational radiation whose amplitude is described by a Bessel function of the first kind. A true Bessel beam is non-diffractive. This means that as it propagates, it does not diffract and spread out; this is in contrast to the usual behavior of light (or sound), which spreads out after being focussed down to a small spot.".
- Bessel_beam label "Bessel beam".
- Bessel_beam sameAs Bessel-Strahl.
- Bessel_beam sameAs Faisceau_de_Bessel.
- Bessel_beam sameAs Beselio_pluoštas.
- Bessel_beam sameAs m.027wlpv.
- Bessel_beam sameAs Луч_Бесселя.
- Bessel_beam sameAs Besselstråle.
- Bessel_beam sameAs Q830111.
- Bessel_beam sameAs Q830111.
- Bessel_beam wasDerivedFrom Bessel_beam?oldid=675424709.
- Bessel_beam depiction Bessel_beam.svg.
- Bessel_beam isPrimaryTopicOf Bessel_beam.