期刊
ADVANCED MATERIALS
卷 31, 期 24, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201804774
关键词
infrared; near-field microscope; near-field optics; SNOM; s-SNOM; terahertz
类别
资金
- National Basic Key Research Program of China [2015CB9324000]
- National Natural Science Foundation of China [11704085]
- Programmable Quantum Materials, an Energy Frontier Research Center - U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) [DE-SC0019443]
- EPiQS Initiative Grant [GBMF4533]
- [AFOSR: FA9550-15-1-0478]
- [ONR-N000014-18-1-2722]
- [DOE-BES DE-SC0018426]
- [DOE-BESDE-SC-0012375]
- [DOE-BESDE-SC0018218]
Infrared and optical spectroscopy represents one of the most informative methods in advanced materials research. As an important branch of modern optical techniques that has blossomed in the past decade, scattering-type scanning near-field optical microscopy (s-SNOM) promises deterministic characterization of optical properties over a broad spectral range at the nanoscale. It allows ultrabroadband optical (0.5-3000 mu m) nanoimaging, and nanospectroscopy with fine spatial (<10 nm), spectral (<1 cm(-1)), and temporal (<10 fs) resolution. The history of s-SNOM is briefly introduced and recent advances which broaden the horizons of this technique in novel material research are summarized. In particular, this includes the pioneering efforts to study the nanoscale electrodynamic properties of plasmonic metamaterials, strongly correlated quantum materials, and polaritonic systems at room or cryogenic temperatures. Technical details, theoretical modeling, and new experimental methods are also discussed extensively, aiming to identify clear technology trends and unsolved challenges in this exciting field of research.
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