期刊
NANO LETTERS
卷 14, 期 7, 页码 3881-3886出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl501102n
关键词
Surface plasmons; nanoantennas; nanocircuits; plasmonic waveguides
类别
资金
- Ministry of Science and Technology of Taiwan [NSC-99-2113-M-007-020-MY2, NSC-101-2113-M-007-002-MY2, NSC-100-2112-M-007-007-MY3]
- Center for Nanotechnology, Materials Sciences, and Microsystems at National Tsing Hua University
Symmetric and antisymmetric guided modes on a plasmonic two-wire transmission line have distinct properties and are suitable for different circuit functions. Being able to locally convert the guided modes is important for realizing multifunctional optical nanocircuits. Here, we experimentally demonstrate successful local conversion between the symmetric and the antisymmetric modes in a single-crystalline gold plasmonic nanocircuit with an optimally designed mode converter for optical signals at 194.2 THz. Mode conversion may find applications in controlling nanoscale light-matter interaction.
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