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Browsing by Author "Kazak, NS"

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  • Litvin, IA; Loveday, PW; Long, CS; Kazak, NS; Belyi, V; Forbes, A (Society of Photo-Optical Instrumentation Engineers (SPIE), 2008-08)
    There are many applications in which a laser beam with a flat–top intensity profile would be ideal, as compared to a laser beam with a non–uniform energy distribution. Standard stable optical resonators will unfortunately ...
  • Belyi, VN; Kazak, NS; Khilo, NA; Forbes, A; Ropot, PI (Society of Photo-optical Instrumentation Engineers (SPIE), 2009-08)
    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 ...
  • Belyi, VN; Khilo, NA; Kazak, NS; Ryzhevich, AA; Forbes, A (Society of Photo-optical Instrumentation Engineers (SPIE), 2011-05)
    The authors investigate the generation and transformation of Bessel beams through linear and nonlinear optical crystals. They outline the generation of high-order vortices due to propagation of Bessel beams along the optical ...
  • Belyi, VN; Kazak, NS; Khilo, NA; Forbes, A; Ropot, PI (Elsevier, 2011-11)
    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 ...