期刊
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
卷 4, 期 -, 页码 632-637出版社
BEILSTEIN-INSTITUT
DOI: 10.3762/bjnano.4.70
关键词
light localization; nano-antenna; near field; phase-change materials; plasmon coupling
资金
- Temasek Defence Systems Institute (TDSI) [R-263-000-687-592 TDSI/11-013/1A]
By utilizing the strongly induced plasmon coupling between discrete nano-antennas and quantitatively controlling the crystalline proportions of an underlying Ge2Sb2Te5 (GST) phase-change thin layer, we show that nanoscale light localizations in the immediate proximity of plasmonic nano-antennas can be spatially positioned. Isolated energy hot-spots at a subwavelength scale can be created and adjusted across the landscape of the plasmonic system at a step resolution of lambda/20. These findings introduce a new approach for nano-circuitry, bio-assay addressing and imaging applications.
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