Generation and verification of optical vortices with controlled phase based on coherent beam combining

Luo, Hao; Yang, Kaibo; Wen, Feng; Gu, Yuzong; Wu, Zhenkun

doi:10.1088/1402-4896/ac91ff

Cited by 5 publications

(3 citation statements)

References 45 publications

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“…For instance, consider an application in which researchers are working with twisted light beams (optical vortices) carrying OAM in optical communication systems [75][76][77][78][79][80][81][82][83]. They could use these equations to analyze the effects of different media on the propagation of the twisted light beams and their OAM properties.…”

Section: Generation Of Electron Beams Carrying Orbital Angular Momentummentioning

confidence: 99%

Extended Field Interactions in Poisson’s Equation Revision

Pinheiro

2024

Applied Sciences

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This investigation introduces a new variational approach to refining Poisson’s equation, enabling the inclusion of a broader spectrum of physical phenomena, particularly in the emerging fields of spintronics and the analysis of resonant structures. The innovative formulation extends the traditional capabilities of Poisson’s equation, offering a nonlocal extension to classical theories of gravitation and opening new directions for energy conversion and enhanced communication technologies. By introducing a novel geometric structure, ω˜, into the equation, a deeper understanding of electrostatic potentials is achieved, and the intricate dynamics of the gravitational potential in systems characterized by radial vorticity fluctuations are illuminated. Furthermore, the research elucidates the generation of longitudinal electromagnetic waves and resonant phenomena within dusty plasma media, thereby contributing to the methodological advances in the study of nonequilibrium systems. These theoretical advances have the potential to transform the understanding of complex physical systems and open up opportunities for significant technological achievements across a range of scientific sectors.

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Section: Generation Of Electron Beams Carrying Orbital Angular Momentummentioning

confidence: 99%

Extended Field Interactions in Poisson’s Equation Revision

Pinheiro

2024

Applied Sciences

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“…To investigate the effect of the local vortex phase, Cheng et al generated an annular beam with multiple segments of phase gradients, which can control the rotation particles and rotation velocity of the trapped particle owning to the segments of the different phase gradients [13]. So far, the segment vortex phase has been utilized for various applications such as generating segmented-phase high-order Bessel beams [14], generating and verifying optical vortices [15], controlling the OAM distribution [16], and controlling hybrid grafted perfect vector vortex beams [17]. Thus, it is important to explore an alternative technique to design a segmented autofocusing beam with phase modulation.…”

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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“…The existence and properties of optical vortices in different optical phenomena are crucial for comprehending the spatial interference patterns through physical understanding [3]. Optical vortices, with their diverse potential applications such as optical manipulation, microscopy and imaging [4], free-space communication [5][6][7], and quantum information [8], have emerged as a significant field of study in recent years. Researchers have developed various methods for generating these beams, which include the use of cylindrical lenses [9], helical phase plates [10], helical phase mirrors [11], inhomogeneous birefringent elements [12], and siliconintegrated optical vortex emitters [13].…”

Section: Introductionmentioning

confidence: 99%

Superposing and modulating heterogeneous optical vortices of high-order orbital angular momentum

Zhang,

Luo,

et al. 2023

J. Opt.

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This article reports the preparation of high orbital angular momentum (OAM) using non-uniform beam interference both theoretically and experimentally. This study commences with the reconstruction of Bessel–Gaussian vortex beams utilizing power-exponential-phase vortices. Subsequently, two reconstructed beams are used for interfere, followed by the application of the phase multiplication technique. This methodology enables higher-order operations on the interfered beams, thereby escalating their topological charges and facilitating the attainment of high-orbit angular momentum. The implementation of these methods is especially relevant in the realms of optical manipulation and remote sensing. Lastly, the high OAM optical vortex is subjected to rotation at any controllable angle. This manipulation introduces an additional degree of freedom for particle operations, thereby expanding their application prospects.

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Generation and verification of optical vortices with controlled phase based on coherent beam combining

Cited by 5 publications

References 45 publications

Extended Field Interactions in Poisson’s Equation Revision

Extended Field Interactions in Poisson’s Equation Revision

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

Superposing and modulating heterogeneous optical vortices of high-order orbital angular momentum

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