光子学突破2024：纳米尺度自旋轨道相互作用的近场观测

IF 2.4 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2025-07-30 DOI:10.1109/JPHOT.2025.3593859

Jinwei Zeng;Yajuan Dong;Yu Wang;Dengji He;Xiaotong Zhu;Jian Wang

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引用次数: 0

摘要

光的自旋-轨道相互作用（SOI）描述了与圆偏振相关的自旋角动量和与空间波前结构相关的轨道角动量之间的相互作用。虽然在传统的远场光学中通常微不足道，但在近场的亚波长尺度上，复杂的矢量光场出现时，SOI可以变得重要。这一现象在微/纳米光子器件、光学传感和量子信息技术方面的应用前景令人兴奋。在这篇综述中，我们强调了SOI研究的最新进展，特别强调了使用光致力显微镜精确表征近场SOI的演示。这项技术可以直接、高分辨率地绘制尖锐聚焦的光学涡旋光束的纵向和横向近场分量，为自旋到轨道的转换过程提供定量的洞察。我们还讨论了当前存在的挑战，并概述了先进光学系统中光的SOI探索性研究的未来方向。

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Photonics Breakthroughs 2024: Nearfield Observation of Spin-Orbit Interactions at Nanoscale

The spin-orbit interaction (SOI) of light describes the interaction between spin angular momentum, related to circular polarization, and orbital angular momentum, associated with spatial wavefront structures. While typically trivial in conventional farfield optics, the SOI can become significant at subwavelength scales in the nearfield, where complex vectorial light fields arise. This phenomenon offers exciting prospects for applications in micro-/nano-photonic devices, optical sensing and quantum information technology. In this review, we highlight recent advances in the investigation of the SOI, with particular emphasis on the demonstration of accurate nearfield SOI characterization using photoinduced force microscopy. This technique enables direct, high-resolution mapping of longitudinal and transverse nearfield components of sharply focused optical vortex beams, providing quantitative insight into the spin-to-orbit conversion process. We also discuss existing challenges and outline future directions for exploratory research on the SOI of light in advanced optical systems.

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来源期刊

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.