Off‐Axis and Multi Optical Bottles from the Ring Airy Gaussian Vortex Beam with the Astigmatic Phase

Wu, You; Lin, Zejia; Xu, Chuangjie; Xiao, Fu; Chen, Kaihui; Qiu, Huixin; Deng, Dongmei

doi:10.1002/andp.202000188

Cited by 26 publications

(3 citation statements)

References 52 publications

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“…A more complex modification provides segmentation and complication of the beam structure [4,15,56,57], as well as rotation of a structured beam at propagation [58][59][60]. Another useful property of autofocusing beams is the possibility of forming optical bottles with complex shapes on their basis [61][62][63].…”

Section: Discussionmentioning

confidence: 99%

Mirror and Circular Symmetry of Autofocusing Beams

Хонина

2021

Symmetry

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This article demonstrates the crucial importance of the symmetrization method for the formation of autofocusing beams. It is possible to impart autofocusing properties to rather arbitrary distributions, for example, truncated and inverted classical modes (such as Hermite–Gaussian, Laguerre–Gaussian, and Bessel modes) or shift the fundamental Gaussian beam by inserting mirror or circular symmetry. The most convenient for controlling autofocusing characteristics is the truncated sinus function with a power-law argument dependence. In this case, superlinear chirp beams (with power q > 2) exhibit sudden and more abrupt autofocusing than sublinear chirp beams (with power 1 < q < 2). Comparison of the different beams’ propagation is performed using fractional Fourier transform, which allows obtaining the field distribution in any paraxial region (both in the Fresnel and Fraunhofer diffraction regions). The obtained results expand the capabilities of structured beams in various applications in optics and photonics.

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Section: Discussionmentioning

confidence: 99%

Mirror and Circular Symmetry of Autofocusing Beams

Хонина

2021

Symmetry

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“…During propagation, the CAB can initially keep a low-intensity distribution, then abruptly converge to a focal point where the intensity is suddenly enhanced by orders of magnitude [25][26][27][28][29]. In recent years, vortex phase modulation has allowed for the extension of the CABs from single vortex CABs to double or multiple vortex CABs [30][31][32][33][34]. Therefore, combining the CAB and the segmented vortex phase is of great interest to facilitate more flexible control of the auto-focusing characteristics and local vortex of the beam.…”

Section: Introductionmentioning

confidence: 99%

Generation of auto-focusing vortex beam via segment vortex phase for imaging edge-enhancement

Lin,

Tao

2024

Phys. Scr.

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The auto-focusing beam based on the circular Airy beam and segmented vortex phase, termed circular Airy segmented vortex beam (CASVB), was generated. During propagation, the focusing properties of the CASVB can be flexibly tunable for multiple degrees of freedom. The results show that the segmentation type of the vortex phase are determined by the number and position of phase jumps, which results in the beam split. Moreover, the number and position of the CASVB gaps coincide with the number and position of the phase jumps. In addition, the edge images can be enhanced by combining the phase of the beam with the phase of the lens. Due to its adjustable number and position of gaps, the CASVB will likely give rise to potential applications in manipulating particles along different segmented intensity trajectories.

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“…[11,12] Recently, some new types of the auto-focusing beam have been reported [13,14] and a kind of novel property of the Airy-like beam has been investigated. [15,16] So far, researchers have diffusely studied the paraxial propagation of Airy beams in media with external potentials, [17][18][19] inhomogeneous medium, [20][21][22][23][24] linear medium, [4,5] nonlinear medium [25,26] and apertured optical system. [27] Researches on the propagation of laser beams in uniaxial crystals have important effects on the design of compensators, polarizers, amplitude and phase modulation devices.…”

Section: Introductionmentioning

confidence: 99%

Nonparaxial propagation of radially polarized chirped Airy beams in uniaxial crystal orthogonal to the optical axis*

Chen¹,

Wu²,

Mo³

et al. 2021

Chinese Phys. B

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The nonparaxial propagation of radially polarized chirped Airy beams (RPCAiBs) in uniaxial crystal orthogonal to the optical axis is analytically studied. The effects of the first and the second order chirp factors, and the ratio of the extraordinary refractive index to the ordinary refractive index on the nonparaxial evolution of RPCAiBs in different observation planes are investigated in detail. The results show that when one parameter changes, different components behave differently, and even the same component has various behavior in different directions. The initial slope of RPCAiBs in the x-direction varies more with the first order chirp factor than that in the y-direction. Meanwhile, with the second order chirp factor becoming larger, the depth of the focus of the y-component in the x-direction decreases while that in the y-direction has no difference. In addition, the different ratios of the extraordinary refractive index to the ordinary refractive index change the difference of the depth of the focus between the x- and the y-components.

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Off‐Axis and Multi Optical Bottles from the Ring Airy Gaussian Vortex Beam with the Astigmatic Phase

Cited by 26 publications

References 52 publications

Mirror and Circular Symmetry of Autofocusing Beams

Mirror and Circular Symmetry of Autofocusing Beams

Generation of auto-focusing vortex beam via segment vortex phase for imaging edge-enhancement

Nonparaxial propagation of radially polarized chirped Airy beams in uniaxial crystal orthogonal to the optical axis*

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