A new composite-designing method of computer-generated holograms (CGH) is proposed to generate Bessel-like beams with complex transverse intensity distributions that propagating along arbitrary trajectories. In this method, the radial and azimuthal distribution of phase are regarded as two independent variables and designed separately, so that the Bessel-like beam can be three-dimensionally (3D) manipulated. Furthermore, on the basis of that method, more complex nondiffractive beams can be generated by coaxial/non-coaxial interference of multiple beams. Laser beam spatially shaping can be realized by loading the pre-designed phases onto a spatial light modulator (SLM). These may have potential applications in optical trapping, microholes fabrication and two-photon polymerization (TPP) technology.
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