期刊
NANOSCALE
卷 7, 期 20, 页码 9147-9152出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr01634g
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资金
- National Basic Research Program of China (973 Program) [2011CB922204]
- National Natural Science Foundations of China [21173059, 21222311, 11174042, 11374039]
We investigate the optical response of gold nanorod (AuNR) dimers assembled in parallel on a DNA origami template. Plasmonic circular dichroism (CD) was found to be highly dependent on the orientation of the dimers relative to the DNA axis and the inter-rod distances. Dipole-dipole distances play a critical role in the induced plasmonic chirality. The orientation dependence of induced CD was further verified by AuNR/Au nanosphere (AuNS) heterodimers. The experimental results of the plasmonic CD agreed well with theoretical calculations.
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