Creating a spatial optical tube of prescribed characteristics

Zeng, Yongxi; Chen, Musheng; Lin, Shi‐Ming; Huang, Han; Wu, Pinghui; Zhou, Mianmian; Yu, Yanzhong

doi:10.1016/j.optcom.2021.127581

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…The radiated fields of the combined antennas can be calculated by integrating the radiated fields of the electric current elements and the magnetic current elements respectively. According to the electromagnetic radiation theory, the radiated fields of the electric current element ⃗ E e_u and the magnetic current element ⃗ E m_u can be derived as equations (2-1) and (2-2) [28][29][30]:…”

Section: Proposed Methods For a Spatial Optical Chainmentioning

confidence: 99%

Creation of optical chains with prescribed characteristics

Zeng¹,

Yu²,

Zhan³

2023

J. Opt.

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We report a non-iterative method to create an arbitrarily spatially-orientated optical chain with prescribed characteristics through the use of antenna radiation theory and time reversal methodology. A pair of antennas consisting of an electric current line source and a magnetic current line source are employed to yield the required incident field pattern for 4π focusing system. Numerical results demonstrate that the direction of the generated optical chain is consistent with the orientation of the combined antennas, and the length of the optical chain is approximately equal to the length of the combined antennas, and the amount, position and spacing of the dark hollow spots are determined by the length of the combined antenna and the amplitude periodic coefficient of the electric current line source. The generated optical chains may find potential applications in multi-points optical capture and particle delivery along prescribed directions.

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Section: Proposed Methods For a Spatial Optical Chainmentioning

confidence: 99%

Creation of optical chains with prescribed characteristics

Zeng¹,

Yu²,

Zhan³

2023

J. Opt.

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“…Hollow beams have various applications in micro-and nano-processing [1], microscopic imaging [2,3], photolithography [4], particle manipulation [5,6], and optical wrenches [7,8]. To date, several beam generation methods have been proposed, including modulating polarized beams to produce length-adjustable light needles or hollow beams [9], using a 4 π confocal system to backpropagate the radiation field to generate multisegment hollow beams [10], or creating a spatial optical tube of prescribed characteristics [11]. Chen et al [12] produced a section of a hollow beam with uniform intensity by focusing a vortex beam through a phase-type spatial light modulator for the first time in 2018.…”

Section: Introductionmentioning

confidence: 99%

Theoretical realization of tunable hollow beams using a periodical ring structure with a complex phase

Sun,

Wang,

Liang

et al. 2024

Front. Phys.

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Hollow beam is a peculiar structure beam, which has been widely used in various areas. Here, we propose a novel diffraction optical element to generate tunable hollow beams. This element is composed of periodic concentric rings. The phase of each ring is periodically distributed between −π and π and satisfies a complex variable function. By tuning the parameters of the structure, we can flexibly manipulate the size and length of the hollow beam. The length of the beam can be increased from 98 λ to 248 λ, and the full width at half maximum varies from 0.43 λ to 0.61 λ. Moreover, the light intensity and side lobe of the hollow beam can also be regulated using the designed diffraction optical element. The potential applications of this highly tunable hollow beam include optical nanomanipulation, microscopic imaging, and nanolithography.

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Generation of a linear array of focal spots with prescribed characteristic using the radiation pattern from a tapered line source antenna

Zeng

et al. 2023

Optics Communications

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Creating a spatial optical tube of prescribed characteristics

Cited by 3 publications

References 26 publications

Creation of optical chains with prescribed characteristics

Creation of optical chains with prescribed characteristics

Theoretical realization of tunable hollow beams using a periodical ring structure with a complex phase

Generation of a linear array of focal spots with prescribed characteristic using the radiation pattern from a tapered line source antenna

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