Trapping two types of Rayleigh particles using a focused partially coherent anomalous vortex beam

Dong, Mingdong; Jiang, Dagang; Luo, Nanhang; Yang, Yuanjie

doi:10.1007/s00340-019-7165-4

Cited by 26 publications

(5 citation statements)

References 27 publications

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“…We have reviewed the remarkable progress that has been made in this field, including optical trapping in suspension and air/vacuum, optical transporting of metal nanoparticles, and the biomedical application of optical trapping. It is clear that optical tweezers will evolve as beam shaping technologies evolve, for example, tractor beams, [177][178][179][180][181][182]242 anomalous vortex beams, 243,244 partially coherent vortex beams, 245,246 grafted vortex beams, 247,248 and structured light with photonic and plasmonic structures. [249][250][251][252][253] There is no doubt that new developments in structured light beams will continuously boost the fields of optical manipulation.…”

Section: Discussionmentioning

confidence: 99%

Optical trapping with structured light: a review

et al. 2021

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Optical trapping describes the interaction between light and matter to manipulate micro-objects through momentum transfer. In the case of 3D trapping with a single beam, this is termed optical tweezers. Optical tweezers are a powerful and noninvasive tool for manipulating small objects, and have become indispensable in many fields, including physics, biology, soft condensed matter, among others. In the early days, optical trapping was typically accomplished with a single Gaussian beam. In recent years, we have witnessed rapid progress in the use of structured light beams with customized phase, amplitude, and polarization in optical trapping. Unusual beam properties, such as phase singularities on-axis and propagation invariant nature, have opened up novel capabilities to the study of micromanipulation in liquid, air, and vacuum. We summarize the recent advances in the field of optical trapping using structured light beams.

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Section: Discussionmentioning

confidence: 99%

Optical trapping with structured light: a review

et al. 2021

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“…Therefore, the tight-focusing characteristics of radially polarized beams have always been the focus of research [15,16]. Partially coherent vector beams have advantages over fully coherent beams in the fields of light trapping [21,22], freespace optical (FSO) communication [23] and high-resolution imaging [24]. Specifically, by tuning the spatial coherence of radially polarization beams, it is possible to trap types of particles with different sizes and refractive indices [21,22].…”

Section: Introductionmentioning

confidence: 99%

“…Partially coherent vector beams have advantages over fully coherent beams in the fields of light trapping [21,22], freespace optical (FSO) communication [23] and high-resolution imaging [24]. Specifically, by tuning the spatial coherence of radially polarization beams, it is possible to trap types of particles with different sizes and refractive indices [21,22]. In previous works, we have investigated the propagation properties of partially coherent [3] Laguerre-Gaussian (LG) APEPV beams [1], tightly focused properties of RSPEPV beams [2], and 0-order LG-RSPEPV [25] beams, and pointed out some of their application advantages in optical trapping [10].…”

Section: Introductionmentioning

confidence: 99%

Statistical Properties of Partially Coherent Higher-Order Laguerre-Gaussian Power-Exponent Phase Vortex Beams

Pan

Dou

et al. 2023

Photonics

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In this paper, partially coherent radially polarized (RP) Laguerre–Gaussian (LG) rotationally symmetrical power–exponent phase vortex (RSPEPV) beams with the LG–correlated Schell–model (LGSM) were introduced. The statistical properties of the tightly focused beams, including intensity distribution, degrees of polarization and coherence, and Stokes vector, were studied based on vectorial Richards–Wolf diffraction integral theory. Moreover, when the distance between focal plane and the observation plane z = 0, the relationships between the tight–focusing properties of RP–LG–RSPEPV beams with LGSM and the order of LGSM p’, topological charges l, power exponent n, spatial correlation δ, and radial index p were investigated. The results show that by changing the order of LGSM, topological charge, power exponent, spatial correlation length, and radial index, the focal spot distribution of various shapes can be obtained. This work provides ideas for the application of partially coherent beams in particle capture and optical tweezers.

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“…the elegant Laguerre Gaussian beams first time to be generated experimentally. Moreover, the AVB is a general model that the ordinary Gaussian, the Bessel vortex beam, hollow Gaussian beam and the Bessel-Gauss beam are special types of it [9].…”

Section: Introductionmentioning

confidence: 99%

Tight focusing of high-order polarized anomalous vortex beam

Xu¹,

Qin²,

Ji³

et al. 2022

Laser Phys.

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Based on the vector Debye theory, the tight focusing properties of a high-order polarized anomalous vortex (HPAV) beam are studied. The corresponding mathematical expressions of the HPAV beam are derived theoretically. We accomplish the inner and outer gear shapes of the focusing intensity where the number of the gear tooth can be modulated by polarization order. The results show that the focusing gear intensity can be flexibly modulated by initial polarization azimuth which may determine the trapping effects. Various charming focusing field patterns can be used to capture two kinds of different refractive indices particles simultaneously. The compactness of the intensity distribution can be freely adjusted by the HPAV beam topological charges and polarization order. The focal spot size, which is far beyond the Rayleigh diffraction limitation can be achieved. It may be expected to have potential applications in optical microscopy, imaging, optical telecommunication and other fields.

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Trapping two types of Rayleigh particles using a focused partially coherent anomalous vortex beam

Cited by 26 publications

References 27 publications

Optical trapping with structured light: a review

Optical trapping with structured light: a review

Statistical Properties of Partially Coherent Higher-Order Laguerre-Gaussian Power-Exponent Phase Vortex Beams

Tight focusing of high-order polarized anomalous vortex beam

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