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Browsing by Author "Khilo, NA"

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  • Belyi, VN; Forbes, A; Kazak, NS; Khilo, NA; Ropot, PI (Society of Photo-Optical Instrumentation Engineers (SPIE), 2009-08)
    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 ...
  • Belyi, VN; Khilo, NA; Forbes, A; Ryzhevich, AA (Society of Photo-optical Instrumentation Engineers (SPIE), 2009-08)
    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 ...
  • Litvin, IA; Khilo, NA; Forbes, A; Belyi, VN (Society of Photo-Optical Instrumentation Engineers, 2009-08)
    In this paper the researchers report on two resonator systems for producing LDBLBs with arbitrary initial parameters. First resonator system is based on doublet of divergence and convergence lenses with spherical aberration. ...
  • Litvin, IA; Khilo, NA; Forbes, A; Belyi, VN (Optical Society of America, 2010-02)
    The authors report on two resonator systems for producing Bessel–like beams with longitudinally dependent cone angles (LDBLBs). Such beams have extended propagation distances as compared to conventional Bessel– Gauss beams, ...
  • 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 ...