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Browsing by Subject "Axicon"

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Bessel-like beams with z-dependent cone angles

Author: Belyi, VN ; Forbes, A ; Kazak, NS ; Khilo, NA ; Ropot, PI Date: Aug 2009 A new type of Bessel-like optical beams, which is distinguished by the dependence on the cone angle from the longitudinal coordinate, is investigated. Such beams have the properties of Bessel beams (ring-spatial spatial spectrum) as well as ... Read more
Generation and propagation of high-order Bessel vortices in linear and non-linear crystals

Author: Belyi, VN ; Khilo, NA ; Forbes, A ; Ryzhevich, AA Date: Aug 2009 Linear and nonlinear processes of transferring optical singularities from anisotropic crystals onto the wavefront of Bessel light beams (BLBs) are investigated. The generation of high-order vortices at the propagation of BLBs along the optical ... Read more
Higher-order Bessel like beams with z-dependent cone angles

Author: Ismail, Y ; Barnes, G ; Mhlanga, T ; Belyi, V ; Forbes, A Date: Aug 2010 As in the case of zero-order Bessel beam being produced by illuminating an axicon with a Gaussian beam, higher-order Bessel beams are generated by substituting the Gaussian beam with a Laguerre Gaussian (LG) beam. These beams hold similar ... Read more
Investigation of local spatial spectra of Bessel light beams

Author: Belyi, VN ; Kazak, NS ; Khilo, NA ; Forbes, A ; Ropot, PI Date: Aug 2009 The spectrum of spatial frequencies (SFS) of Bessel beams properties emerging at their spatial localization is investigated. The case, when limiting aperture has a circular shape and a center at any distance from the optical axis, was studied. ... Read more
Special features of local spatial spectrum of Bessel light beams

Author: Belyi, VN ; Kazak, NS ; Khilo, NA ; Forbes, A ; Ropot, PI Date: Nov 2011 In this paper the authors consider the angular spectrum of an apertured Bessel beam when the aperture is circular and shifted laterally with respect to the optical axis. Since the perturbation of the resulting angular spectrum is due to a ... Read more

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Browsing by Subject "Axicon"

Browsing by Subject "Axicon"

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