Journal
PLASMONICS
Volume 12, Issue 1, Pages 33-38Publisher
SPRINGER
DOI: 10.1007/s11468-016-0225-2
Keywords
Circular polarization; Surface plasmon; Multi-focal lens
Funding
- Fundamental Research Funds for the Central Universities [JUSRP115A14]
- Natural Science Foundation of Jiangsu Province of China [BK2012548, BK20130162, BK20130116]
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A polarization-controlled tunable plasmonic lens which can generate different multi-focal combinations with exciting sources of left and right circular polarizations is proposed in this paper. Both position and intensity of each focal point can be adjusted by modulating the structure of the plasmonic lens. It is believed that the polarization-controlled tunable plasmonic multi-focal lens can be potentially used for optical switches and multi-channel couplers in future logic photonic and plasmonic systems.
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