期刊
NANO LETTERS
卷 10, 期 9, 页码 3389-3394出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl101285t
关键词
Nanophotonics; surface plasmons; nanowires; wave packet; control
类别
资金
- University of Chicago - Argonne National Laboratory Joint Theory Institute (JTI)
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
Three-dimensional finite-difference time-domain simulations were performed to explore the excitation of surface plasmon resonances in long silver (Ag) nanowires. In particular, we show that it is possible to generate plasmonic wave packets that can propagate along the nanowire by exciting superpositions of surface plasmon resonances. By using an appropriately chirped pulse, it is possible to transiently achieve localization of the excitation at the distal end of the nanowire. Such designed coherent superpositions will allow realizing spatiotemporal control of plasmonic excitations for enhancing nonlinear responses in plasmonic circuits.
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