Ultrashort pulse synthesis for energy concentration control in nanostructures.
Ultrashort pulse synthesis for energy concentration control in nanostructures.
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DOI：
10.1364/oe.26.025188
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发表时间：
2018-09
期刊：
影响因子：
3.8
通讯作者：
A. K. Aziz;Lianhong Zhang;Y. Hao;K. Rajab
中科院分区：
文献类型：
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作者：
A. K. Aziz;Lianhong Zhang;Y. Hao;K. Rajab
介绍了一种波形合成技术，并将其应用于飞秒脉冲激励等离子体纳米天线的时间和空间能量集中控制。波形合成过程基于相位和偏振成形以及对纳米结构的电磁响应的理解。线性和径向的纳米偶极子阵列进行了分析之前，对数周期齿状纳米天线作为一种纳米结构能够结合的纳米偶极子阵列的好处进行了研究。对数周期齿形纳米天线的一致的优越性，建立了通过比较其电磁响应的径向纳米偶极子阵列，使用各种合成的激励波形。
A waveform synthesis technique is introduced and applied to the femtosecond pulse excitation of plasmonic nanoantennas for temporal and spatial energy concentration control. The waveform synthesis process is based on phase and polarization shaping and an understanding of the electromagnetic response of the nanostructure. Linear and radial nano-dipole arrays are analyzed before the log-periodic toothed nanoantenna is investigated as a nanostructure capable of combining the benefits of the nano-dipole arrays. The consistent superiority of the log-periodic toothed nanoantenna is established by comparing its electromagnetic response to that of the radial nano-dipole array using a variety of synthesized excitation waveforms.