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首页> 外文期刊>Physical review >Propagation dynamics of femtosecond pulse through subwavelength metallic hole arrays
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Propagation dynamics of femtosecond pulse through subwavelength metallic hole arrays

机译：飞秒脉冲通过亚波长金属孔阵列的传播动力学

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摘要

We have studied the frequency-dependent transmission time delay of femtosecond (fs) laser pulses through subwavelength hole arrays in aluminum films using the up-conversion technique. The pulse delays measured at different wavelengths mainly follow the far-field transmission profile of the surface-plasmon polariton (SPP) resonances. Temporal delays of 60 and 100 fs were found at the major SPP resonance in the single-layer and double-layer samples. A coupled-SPP transmission model is used to explain the temporal dynamics of the transmission process. Our experiment shows that the weak coupling between the SPP waves on different metal-dielectric interfaces leads to the large temporal delay of the transmitted pulses.
机译：我们已经使用上转换技术研究了飞秒（fs）激光脉冲通过铝膜中亚波长孔阵列的频率相关的传输时延。在不同波长下测量的脉冲延迟主要遵循表面等离子体激元（SPP）共振的远场传输曲线。在单层和双层样品的主要SPP共振处发现60和100 fs的时间延迟。耦合SPP传输模型用于解释传输过程的时间动态。我们的实验表明，不同金属-电介质界面上的SPP波之间的弱耦合会导致发射脉冲的较大时间延迟。

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  • 来源
    《Physical review》 |2011年第24期|p.245449.1-245449.7|共7页
  • 作者

    H. M. Su; Z. H. Hang; Z. Marcet; H. B. Chan; C. T. Chan; K. S. Wong;

  • 作者单位

    Department B.83f Physics, The HB.83ng KB.83ng University B.83f Science and TechnB.83lB.83gy, KB.83wlB.83B.83n, HB.83ng KB.83ng, PeB.83ple's Republic B.83f China;

    Department B.83f Physics, The HB.83ng KB.83ng University B.83f Science and TechnB.83lB.83gy, KB.83wlB.83B.83n, HB.83ng KB.83ng, PeB.83ple's Republic B.83f China;

    Department B.83f Physics, The HB.83ng KB.83ng University B.83f Science and TechnB.83lB.83gy, KB.83wlB.83B.83n, HB.83ng KB.83ng, PeB.83ple's Republic B.83f China,Department B.83f Physics, University B.83f FlB.83rida, Gainesville, FlB.83rida 32611, USA;

    Department B.83f Physics, The HB.83ng KB.83ng University B.83f Science and TechnB.83lB.83gy, KB.83wlB.83B.83n, HB.83ng KB.83ng, PeB.83ple's Republic B.83f China,Department B.83f Physics, University B.83f FlB.83rida, Gainesville, FlB.83rida 32611, USA;

    Department B.83f Physics, The HB.83ng KB.83ng University B.83f Science and TechnB.83lB.83gy, KB.83wlB.83B.83n, HB.83ng KB.83ng, PeB.83ple's Republic B.83f China;

    Department B.83f Physics, The HB.83ng KB.83ng University B.83f Science and TechnB.83lB.83gy, KB.83wlB.83B.83n, HB.83ng KB.83ng, People's Republic of China;

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  • 正文语种 eng
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  • 关键词

    wave propagation, transmission and absorption; gratings; optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures; laser-plasma interactions;

    机译：波的传播;传输和吸收;光栅;低维;介观和纳米级材料和结构的光学特性;激光等离子体相互作用;

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