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

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2024-10-08 DOI:10.1016/j.optlastec.2024.111903

FaJing Li , XinYang Yu , KeLi Chen , JiaQi Luo , ShouPing Nie , Jun Ma , CaoJin Yuan

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引用次数: 0

Abstract

Beams with controllable shapes and multiple zero intensity breaks hold particular significance in optical trapping, optical encryption, and optical communication. In this work, an anomalous polygonal azimuthal-gap beam (APAB) exhibiting controllable discontinuous intensity distribution is proposed and studied both theoretically and experimentally. The APAB features multiple zero intensity breaks within its polygonal intensity pattern by setting multiple the binarization thresholds and modulating parameters of the free lens phases. Additionally, the specific number and arrangement of azimuthal gaps by combining multiple APABs make up a beam array characterized by the various configurations of azimuthal-gaps and customized intensity profiles. The particle manipulation characteristics of the designed APABs are verified by optical tweezer experiments. It is demonstrated that the APABs utilize azimuthal-gap location as a new dimension to stably trap, locate, rotate, disperse particles, and guide particles, while the polygonal intensity guides particles along specific paths. Due to its unique properties, APAB will have many promising applications such as multi-particle trapping in 3D orientation, optical communication, lensless imaging, and optical multiplexing technology.

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具有二值化阈值的可裁剪反常多边形方位角间隙光束，用于诱导粒子运动

具有可控形状和多个零强度断点的光束在光捕获、光加密和光通信领域具有特别重要的意义。本研究提出了一种反常多边形方位角间隙光束（APAB），它表现出可控的不连续强度分布，并对其进行了理论和实验研究。通过设置多个二值化阈值和调制自由透镜相位的参数，APAB 在其多边形强度模式中具有多个零强度断点。此外，通过将多个 APAB 组合在一起，方位角间隙的特定数量和排列构成了一个光束阵列，其特点是方位角间隙的各种配置和定制的强度曲线。光学镊子实验验证了所设计 APAB 的粒子操纵特性。实验证明，APAB 利用方位角间隙位置作为一个新的维度来稳定地捕获、定位、旋转、分散粒子和引导粒子，而多边形强度则引导粒子沿特定路径移动。由于其独特的性能，APAB 将在三维方位的多粒子捕获、光通信、无透镜成像和光复用技术等方面有着广阔的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems