Spatiotemporal Characterization of SPP Pulse Propagation in Two-Dimensional Plasmonic Focusing Devices
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- 作者：Christoph Lemke ; Christian Schneider ; Till Lei脽ner ; Daniela Bayer ; J枚rn W. Radke ; Alexander Fischer ; Pascal Melchior ; Andrey B. Evlyukhin ; Boris N. Chichkov ; Carsten Reinhardt ; Michael Bauer ; Martin Aeschlimann
- 刊名：Nano Letters
- 出版年：2013
- 出版时间：March 13, 2013
- 年：2013
- 卷：13
- 期：3
- 页码：1053-1058
- 全文大小：299K
- 年卷期：v.13,no.3(March 13, 2013)
- ISSN：1530-6992
文摘
The spatiotemporal evolution of a SPP wave packet with femtosecond duration is experimentally investigated in two different plasmonic focusing structures. A two-dimensional reconstruction of the plasmonic field in space and time is possible by the numerical analysis of interferometric time-resolved photoemission electron microscopy data. We show that the time-integrated and time-resolved view onto the wave packet dynamics allow one to characterize and compare the capabilities of two-dimensional components for use in plasmonic devices operating with ultrafast pulses.