Complex non-diffracting bessel-like beams shaping method based on separable radial and azimuthal dependence phase designing

Baichen Ye; Yiwei Xin

doi:10.1117/12.2690195

17 August 2023 Complex non-diffracting bessel-like beams shaping method based on separable radial and azimuthal dependence phase designing

Baichen Ye, Yiwei Xin

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Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 127570K (2023) https://doi.org/10.1117/12.2690195
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

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.

Citation Download Citation

Baichen Ye and Yiwei Xin "Complex non-diffracting bessel-like beams shaping method based on separable radial and azimuthal dependence phase designing", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 127570K (17 August 2023); https://doi.org/10.1117/12.2690195

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KEYWORDS

Fabrication

Femtosecond phenomena

Phase shift keying

Spatial light modulators

Beam shaping

Phase distribution

Bessel beams

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