Tailorable polygon-like beams generated by modified spiral petal-like zone plates

Xia, Tian; Cheng, Shubo; Yu, Weixing; Tao, Shaohua

doi:10.1016/j.rinp.2021.103823

Cited by 9 publications

(2 citation statements)

References 37 publications

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“…Hence, based on the conventional SZPs, in recent years, researchers have investigated modified SZPs to achieve optical vortices with various physical characteristic to satisfy different applications. For current multi-focus research, the application of some aperiodic structures such as Cantor, Fibonacci and Thue-Morse sequences in diffractive elements has attracted considerable attention recently [29][30][31][32][33][34][35][36][37][38][39][40]. For instance, by combing the Cantor sequence with conventional SZPs, sequence optical vortices with a series of subsidiary foci can be generated at the primary focal plane [41].…”

Section: Introductionmentioning

confidence: 99%

The Generation of Equal-Intensity and Multi-Focus Optical Vortices by a Composite Spiral Zone Plate

Zang,

Li,

Zheng

et al. 2024

Photonics

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We propose a new vortex lens for producing multiple focused coaxial vortices with approximately equal intensities along the optical axis, termed equal-intensity multi-focus composite spiral zone plates (EMCSZPs). In this typical methodology, two concentric conventional spiral zone plates (SZPs) of different focal lengths were composited together and the alternate transparent and opaque zones were arranged with specific m-bonacci sequence. Based on the Fresnel–Kirchhoff diffraction theory, the focusing properties of the EMCSZPs were calculated in detail and the corresponding demonstration experiment was been carried out to verify our proposal. The investigations indicate that the EMCSZPs indeed exhibit superior performance, which accords well with our physical design. In addition, the topological charges (TCs) of the multi-focus vortices can be flexibly selected and controlled by optimizing the parameters of the zone plates. These findings which were demonstrated by the performed experiment may open new avenues towards improving the performance of biomedical imaging, quantum computation and optical manipulation.

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Section: Introductionmentioning

confidence: 99%

The Generation of Equal-Intensity and Multi-Focus Optical Vortices by a Composite Spiral Zone Plate

Zang,

Li,

Zheng

et al. 2024

Photonics

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“…A quasi-frequency-degenerate Yb:CALGO laser resonator with astigmatic transformation is also used to generate all kinds of polygonal vortex beams [33]. Furthermore, a spiral petal-like zone plate with an azimuthal modulation provides the polygon-like beam with the tailorable topological charge and size, which has the designed shape by adjusting an exponent [34]. However, these zone plates cannot produce the polygon-like beams or light-arm beams with the adjustable openings.…”

Section: Introductionmentioning

confidence: 99%

A modified multiplexed vortex helico-conical petal-like zone plate

Xia¹,

Cheng²,

Xie³

et al. 2021

Phys. Scr.

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A modified multiplexed vortex helico-conical petal-like zone plate (MMVHPZP) is proposed to generate a polygon-like beam or light-arm beam with an adjustable opening. The MMVHPZP consists of the modified helico-conical petal-like zone plate (MHPZP) with the topological charge l and exponent n, and the multiplexed vortex spiral phase plate (MVSPP) with the inner topological charge l 1 and outer topological charge l 2. Moreover, when l 1 is equal or unequal to l 2, the MMVHPZP has the adjustable polygon-like beam or light-arm beam, respectively. In addition, when n is small or large, the number of arms is equal to the absolute difference between l 1 and l 2 or the sum of one and the absolute difference between l 1 and l 2, respectively. Furthermore, for the different l 1 or l 2, the opening is constant. With the increase of the n or l, the opening is larger. When l 1 is greater or less than l 2, the rotation direction of arms is the anticlockwise or clockwise direction, respectively.

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The tailorable the anomalous polygonal azimuthal-gap beam with binarization threshold for inducing particle motion

Li,

Yu,

Chen

et al. 2025

Optics & Laser Technology

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Tailorable polygon-like beams generated by modified spiral petal-like zone plates

Cited by 9 publications

References 37 publications

The Generation of Equal-Intensity and Multi-Focus Optical Vortices by a Composite Spiral Zone Plate

The Generation of Equal-Intensity and Multi-Focus Optical Vortices by a Composite Spiral Zone Plate

A modified multiplexed vortex helico-conical petal-like zone plate

The tailorable the anomalous polygonal azimuthal-gap beam with binarization threshold for inducing particle motion

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