Propagation of sharply autofocused ring Airy Gaussian vortex beams

Chen, Bin; Chen, Chidao; Peng, Xi; Peng, Yulian; Zhou, Meiling; Deng, Dongmei

doi:10.1364/oe.23.019288

Cited by 144 publications

(44 citation statements)

References 21 publications

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“…Such a method can also be implemented in the generation of circular Airy beams (CABs), i.e., radially symmetric Airy beams. Due to great efforts devoted in the study of abruptly autofocusing beams, the CABs are experimentally demonstrated in the optical regime 30, 31 . Based on the Fourier transform (FT) method described above, the usual generation system of the CABs consists of two components, one of which imprints the required phase pattern and the other performs a FT.…”

Section: Resultsmentioning

confidence: 99%

Terahertz circular Airy vortex beams

Liu

Niu

et al. 2017

Sci Rep

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Vortex beams have received considerable research interests both in optical and millimeter-wave domain since its potential to be utilized in the wireless communications and novel imaging systems. Many well-known optical beams have been demonstrated to carry orbital angular momentum (OAM), such as Laguerre-Gaussian beams and high-order Bessel beams. Recently, the radially symmetric Airy beams that exhibit an abruptly autofocusing feature are also demonstrated to be capable of carrying OAM in the optical domain. However, due to the lack of efficient devices to manipulate terahertz (THz) beams, it could be a challenge to demonstrate the radially symmetric Airy beams in the THz domain. Here we demonstrate the THz circular Airy vortex beams (CAVBs) with a 0.3-THz continuous wave through 3D printing technology. Assisted by the rapidly 3D-printed phase plates, individual OAM states with topological charge l ranging from l = 0 to l = 3 and a multiplexed OAM state are successfully imposed into the radially symmetric Airy beams. We both numerically and experimentally investigate the propagation dynamics of the generated THz CAVBs, and the simulations agree well with the observations.

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Section: Resultsmentioning

confidence: 99%

Terahertz circular Airy vortex beams

Liu

Niu

et al. 2017

Sci Rep

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“…The high-power OAM beam can be used in many applications besides free space communications, such as high-resolution imaging and special material processing [47] . In particular, for the destruction of necrotic biological tissue in the field of biomedical treatment, high-power vortex beams (like the ring Airy–Gaussian beam) have great potential and advantages [48] . Additionally, the manipulation of micro-particles under the radiation of high-power OAM beams may show improved performance.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive investigation on producing high-power orbital angular momentum beams by coherent combining technology

Zhi

Hou

et al. 2019

High Pow Laser Sci Eng

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High-power orbital angular momentum (OAM) beams have distinct advantages in improving capacity and data receiving for free-space optical communication systems at long distances. Utilizing the coherent combination of a beam array technique and helical phase approximation by a piston phase array, we have proposed a generating system for a novel high-power beam carrying OAM, which could overcome the power limitations of a common vortex phase modulator and a single beam. The characteristics of this generating method and the orthogonality of the generated OAM beams with different eigenstates have been theoretically analyzed and verified. Also a high-power OAM beam produced by coherent beam combination (CBC) of a six-element hexagonal fiber amplifier array has been experimentally implemented. Results show that the CBC technique utilized to control the piston phase differences among the array beams has a high efficiency of 96.3%. On the premise of CBC, we have obtained novel vortex beams carrying OAM of $\pm 1$ by applying an additional piston phase array modulation on the corresponding beam array. The experimental results agree approximately with the theoretical analysis. This work could be beneficial to areas that need high-power OAM beams, such as ultra-long distance free-space optical communications, biomedical treatments, and powerful trapping and manipulation under deep potential wells.

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“…21(c). Recently, a circular Airy vortex beam has attracted interest due to its autofocusing property, 130,131 which is a hollow beam carrying OAM, as shown in Fig. 21(d).…”

Section: Optical Trapping With Airy-gaussian Beamsmentioning

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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Propagation of sharply autofocused ring Airy Gaussian vortex beams

Cited by 144 publications

References 21 publications

Terahertz circular Airy vortex beams

Terahertz circular Airy vortex beams

Comprehensive investigation on producing high-power orbital angular momentum beams by coherent combining technology

Optical trapping with structured light: a review

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