纳米等离子体激元的时间相关相干控制
Time-Reversal Coherent Control in Nanoplasmonics
摘要：
我们介绍了一种方法来确定所需的波形相干控制等离子体纳米系统中的光能本地化。该方法基于纳米系统的脉冲局部激发和在具有一个极化的单个点处产生的远区场的时间反转。尽管在金属等离子体系统中存在强相互作用和显著的失相和耗散，以及这种时间反转的不完整性，但所提出的方法被证明在控制纳米级光场方面非常有效。可能的应用包括纳米级光谱学和光调制，超密度存储器和纳米级信息处理。
英文摘要：
We introduce an approach to determining the required waveforms to coherently control the optical energy localization in plasmonic nanosystems. This approach is based on the impulsive localized excitation of the nanosystem and time reversal of the generated far-zone field at a single point with one polarization. Despite strong interaction and significant dephasing and dissipation in metal plasmonic systems, and incompleteness of this time reversal, the proposed approach proves to be very efficient in controlling the nanoscale optical fields. Possible applications include nanoscale spectroscopy and photomodification, ultradense memory, and information processing on the nanoscale.
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