Scanning tunneling microscope based nanoscale optical imaging of molecules on surfaces
Scanning tunneling microscope based nanoscale optical imaging of molecules on surfaces
复制标题
DOI：
10.7567/jjap.54.08la01
复制
发表时间：
2015-06
影响因子：
1.5
通讯作者：
Chao Zhang;Liuguo Chen;Rui Zhang;Z. Dong
中科院分区：
文献类型：
--
作者：
Chao Zhang;Liuguo Chen;Rui Zhang;Z. Dong
本文综述了低温超高真空扫描隧道显微镜（STM）与光子收集和探测单元的融合系统的发展，用于纳米尺度的光学成像。本文结合我们近十年来的工作，简要介绍了STM诱导发光（STML）技术和纳米光学成像面临的挑战，然后介绍了光子采集和探测系统的设计和设备。从STML到主要与光子映射相关的增强拉曼散射，用几个选定的例子说明了该技术的强大潜力。这样的光子图不仅可以揭示结中的局部电磁特性和光学跃迁的性质，而且还可以显示出亚分子和亚纳米尺度的空间成像分辨率。最后，对STML技术的未来发展作了简要的展望。
We provide an overview of the development of a merged system of low-temperature ultrahigh-vacuum scanning tunneling microscope (STM) with photon collection and detection units for optical imaging at the nanoscale. Focusing on our own work over the past ten years, the paper starts from a brief introduction of the STM induced luminescence (STML) technique and the challenge for nanoscale optical imaging, and then describes the design and instrumentation on the photon collection and detection system. The powerful potentials of the technique are illustrated using several selected examples from STML to tip enhanced Raman scattering that are mainly related to photon mapping. Such photon maps could reveal not only the local electromagnetic properties and the nature of optical transitions in the junction, but also exhibit spatial imaging resolution down to sub-molecular and sub-nanometer scale. The paper is concluded with a brief overlook on the future development of the STML technique.