期刊
PLASMONICS
卷 7, 期 3, 页码 479-485出版社
SPRINGER
DOI: 10.1007/s11468-012-9332-x
关键词
Surface plasmon; Long-range surface plasmon; Bimetallic film; Biochip
资金
- Hassan II Academy of Science and Technology, Rabat, Morocco
With this study, we prove that an asymmetric bimetallic structure can support long-range surface plasmon (LRSP) and propose a procedure for its optimization. By applying different criteria we prove that the plasmon which is supported by the structure is indeed LRSP. Unlike all known asymmetric structures supporting LRSP, our structure provides prism excitation and can be used as a biochip for biosensing. Moreover, we show that the structure supports a plasmon with the same propagation constant as LRSP and which is excited at the interface of metal and buffer. This plasmon can be used as a reference channel providing information for the temperature of the structure.
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