Controlling near-field optical intensities in metal nanoparticle systems by polarization pulse shaping
Controlling near-field optical intensities in metal nanoparticle systems by polarization pulse shaping
复制标题
通过偏振脉冲整形控制金属纳米粒子系统中的近场光强度
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
A. Hartschuh
中科院分区：
文献类型：
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作者：
G. Piredda;C. Gollub;R. Vivie;A. Hartschuh
在纳米颗粒附近的近场的相干控制是一个有前途的工具，在纳米尺度上塑造光的时间和空间特性。对一系列越来越复杂的金属纳米粒子系统进行了数值模拟，以详细探索控制机制。我们发现，强度本地化的可控性的一个重要因素是在近场的相位的空间变化，这是由于平面入射波和纳米系统的近场之间的干涉或纳米系统的不同部分所产生的场的干涉。对于随机纳米粒子的集合，我们表明，它是可能的，以选择高度本地化的热点的外观。
Coherent control of near-fields in the proximity of nanoparticles is a promising tool for shaping the temporal and spatial properties of light at the nano-scale. Numerical simulations on a series of progressively more complex metallic nanoparticle systems were carried out to explore in detail the mechanisms of control. We find that an important element for the controllability of intensity localization is the spatial variation of the phase in the near-field that is due either to the interference between the plane incident wave and the near-field of the nanosystem or to the interference of fields generated by different parts of the nanosystem. For a collection of random nanoparticles we show that it is possible to select the appearance of highly localized hot spots.
影响因子：
64.8
作者：
Aeschlimann, Martin;Bauer, Michael;Steeb, Felix
通讯作者：
Steeb, Felix