基于傅立叶相位调制的改进圆形对称艾里光束的高对比度自动聚焦

IF 3.5 2区工程技术 Q2 OPTICS

Optics and Lasers in Engineering Pub Date : 2025-05-16 DOI:10.1016/j.optlaseng.2025.109073

Bingsong Cao , Zhangrong Mei , Yonghua Mao , Jinqi Song , Kaikai Huang

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引用次数: 0

摘要

提出了傅里叶空间中改进的圆形对称艾里光束（MCSAB）的解析表达式，并通过傅里叶相位调制产生该光束。与传统的圆形艾里光束（CAB）一样，MCSAB的自动聚焦距离和聚焦强度分布可以通过参数控制，其自动聚焦强度对比明显增强。在实验中，我们证明了通过单相空间光调制器产生的MCSAB比传统的CAB更节能，并且增强了自动聚焦强度对比度和自动聚焦强度。实验结果与仿真结果吻合较好。MCSAB具有高效率和增强的自动对焦功能，在实际应用中具有广阔的应用前景。

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High-contrast autofocusing in modified circular symmetric Airy beams via Fourier phase modulation

We proposed the modified circular symmetric Airy beam (MCSAB) in Fourier space with analytical expression and generated the beam via Fourier phase modulation. The autofocusing distance and focusing intensity distribution of MCSAB can be controlled through its parameters like the traditional circular Airy beam (CAB), and its autofocusing intensity contrast is sharply enhanced compared with CAB. In experiments, we proved that MCSAB is more energy-efficient for generation through a single phase-only spatial light modulator than traditional CAB and has enhanced autofocusing intensity contrast as well as enhanced autofocusing intensity. Experiments show good agreement with simulations. MCSAB may be promising in real applications for its high efficiency and enhanced autofocusing.

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来源期刊

Optics and Lasers in Engineering 工程技术-光学

CiteScore

8.90

自引率

8.70%

发文量

384

审稿时长

42 days

期刊介绍： Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods. Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following: -Optical Metrology- Optical Methods for 3D visualization and virtual engineering- Optical Techniques for Microsystems- Imaging, Microscopy and Adaptive Optics- Computational Imaging- Laser methods in manufacturing- Integrated optical and photonic sensors- Optics and Photonics in Life Science- Hyperspectral and spectroscopic methods- Infrared and Terahertz techniques