Optimal open-loop near-field control of plasmonic nanostructures
Optimal open-loop near-field control of plasmonic nanostructures
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DOI：
10.1088/1367-2630/14/3/033030
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发表时间：
2012-03-19
影响因子：
3.3
通讯作者：
Voronine, Dmitri V.
中科院分区：
文献类型：
--
作者：
Aeschlimann, Martin;Bauer, Michael;Voronine, Dmitri V.
应用解析导出的控制规则，对偏振形激光脉冲的纳米光激励进行了最优开环控制。通过对两个偏振分量的相对相位施加π位移，实现了金纳米棱镜的最佳空间近场定位和激励切换。实现的近场开关验证了理论预测，证明了预定义控制规则在纳米光学光-物质相互作用中的适用性，揭示了局域模式干涉是一种重要的控制机制。
Optimal open-loop control, i.e. the application of an analytically derived control rule, is demonstrated for nanooptical excitations using polarization-shaped laser pulses. Optimal spatial near-field localization in gold nanoprisms and excitation switching is realized by applying a pi shift to the relative phase of the two polarization components. The achieved near-field switching confirms theoretical predictions, proves the applicability of predefined control rules in nanooptical light-matter interaction and reveals local mode interference to be an important control mechanism.