Optical Fields: Flower‐Shaped Optical Vortex Array (Ann. Phys. 4/2021)

Fan, Haihao; Zhang, Hao; Cai, Chenyuan; Tang, Miaomiao; Li, Hehe; Tang, Jie; Li, Xinzhong

doi:10.1002/andp.202170017

Cited by 4 publications

(2 citation statements)

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“…[ 9 ] The superposition of IGBs can produce complicated structured beams with multiple phase and polarization singularities, which have been applied in many fields ranging from cold atoms trapping [ 10 ] to quantum optics. [ 11 ] However, the current system for the IGB generation includes many bulky optical elements (e.g., Dove prism, SLMs, DMDs, pinhole filters, polarizers, lenses, and dichroic mirrors) and has a low resolution, [ 9,12–15 ] increasing expense and making them impractical for applications where lightweight and compactness are needed. Moreover, problems such as inaccessible polarization control and precise alignment requirements also need to be solved.…”

Section: Introductionmentioning

confidence: 99%

Metasurface for Engineering Superimposed Ince‐Gaussian Beams

Ahmed,

Ansari,

Paterson

et al. 2024

Advanced Materials

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Ince‐Gaussian beams (IGBs) are the third complete family of exact and orthogonal solutions of the paraxial wave equation and have been applied in many fields ranging from particle trapping to quantum optics. IGBs play a very important role in optics as they represent the exact and continuous transition modes connecting Laguerre–Gaussian and Hermite‐Gaussian beams. The method currently in use suffers from the high cost, complexity, and large volume of the optical system. The superposition of IGBs can generate complicated structured beams with multiple phase and polarization singularities. We propose a metasurface approach to realizing various superpositions of IGBs without relying on a complicated optical setup. By superimposing IGBs with even and odd modes, multiple phase and polarization singularities are observed in the resultant beams. The phase and polarization singularities are modulated by setting the initial phase in the design and controlling the incident linear polarization. The compactness of the developed metasurface devices and the unique properties of the generated beams have the potential to impact many practical applications such as particle manipulation, orbital angular momentum spectrum manipulation and optical communications.This article is protected by copyright. All rights reserved

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Section: Introductionmentioning

confidence: 99%

Metasurface for Engineering Superimposed Ince‐Gaussian Beams

Ahmed,

Ansari,

Paterson

et al. 2024

Advanced Materials

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“…[14][15][16] For certain applications, especially those involving trapping and guiding of microparticles, various types of vortex beams are widely used. These include beams with self-focusing property that can auto focus in the propagation, [17][18][19][20][21] perfect vortex beams with particles rotating at a constant speed [22][23][24][25] and optical vortex arrays with multiple singularities. [26] Although these vortex beams have exceptional and relevant functions, the range of their applications should be widened to advance the field of optical manipulation.…”

Section: Introductionmentioning

confidence: 99%

Modified Bessel–Gaussian Vortex Beam with an Adjustable Broken Opening

Yang

Zhang

et al. 2021

Annalen der Physik

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In this study, an open-ring controllable Bessel vortex beam is theoretically and experimentally constructed with a power-exponent-phase vortex. Its distribution in the far field after being blocked with obstacles is subsequently investigated. In the far field, the beam exhibits different degrees of the open-loop effect following adjustments in the phase term of the power exponent. For an obstructed beam, the direction of the open loop is offset by a certain value, and different open-loop angles can be achieved for different blocking angles. The developed beam can be used to guide particles and avoid obstacles.

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