扫描近场光学显微术的研究进展(特邀)  

Progress of Scanning Near-Field Optical Microscopy(Invited)

作　　者：陈宇昕 李志远 Chen Yuxin;Li Zhiyuan(School of Physics and Optoelectronics,South China University of Technology,Guangzhou 510641,Guangdong,China)

机构地区：[1]华南理工大学物理与光电学院,广东广州510641

出　　处：《光学学报》2024年第10期233-246,共14页Acta Optica Sinica

基　　金：国家自然科学基金(11974119);广东重点研发项目(2020B010190001)。

摘　　要：扫描近场光学显微镜(SNOM)因其具有可达10 nm量级的超高光学分辨率与光谱分析能力,为物理、化学、材料科学和生命科学等领域的若干重要前沿基础科学问题提供了强有力的高时空分辨的光学表征工具。本文聚焦高分辨SNOM技术近期的研究进展,首先回顾了SNOM成像技术的基本原理和SNOM探针的发展历史。接着重点介绍了将SNOM成像技术应用于研究微纳尺度上光与原子、分子、二维材料、生物大分子、非线性结构等物质相互作用的时空细节,并阐述了所揭示的微纳尺度上光和物质相互作用的深层次物理、化学和生物学一系列新现象和新规律。最后针对SNOM技术未来的发展趋势,以及可重点关注及进一步研究的关键性科学问题进行了分析和展望。Significance The continuous progress in modern materials science,information technology,and biotechnology has greatly boosted societal advancement.As human understanding of the microcosm deepens,the capability to better describe and characterize the interactions between atomic-scale light and matter,and to achieve the simultaneous participation,coordinated regulation,and multi-modal coupling of multiple physical fields can significantly provide diverse methods and approaches for artificially controlling these matters.Scanning near-field optical microscopy(SNOM)with 40 years’history can serve as a promising tool for these fundamental purposes by hoping to carry out measurement and characterization of light fields and light-matter interactions at deep-subwavelength and even nanometer scales.The essential elements for in-depth exploration of multi-physical field interaction systems in experiments are listed.They include the measurement,characterization,and analysis methods for light-matter interactions at the micro and nanoscales,interactions between photons and various quasi-particles,coupling between quasi-particles,and coupling and regulation between multiple physical fields.Meanwhile,a systematic and precise experimental study on the spatio-temporal details of the interaction among light and molecules,two-dimensional materials,quantum dots,metal nanoparticles,and nonlinear structures at the micro and nanoscales can reveal deep physics and a series of new phenomena and laws.Additionally,it is imperative to develop new methods,technologies,tools,and instrumentation of SNOM for microscopic imaging and spectral analysis with higher spatial resolution(approximately 10 nm),higher temporal resolution(about 50‒100 fs),and higher brightness(transmission efficiency of 1%‒10%).Thus,it is vital to deeply,completely,and compactly introduce and describe the history of SNOM and its applications,with the route towards building such a fundamental high-performance SNOM machine presented.Progress Due to the limitations of tr

关 键 词：扫描近场光学显微镜 高时空分辨 光谱分析 光与物质相互作用 

分 类 号：O436[机械工程—光学工程]