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Control of Group Velocity Based on Nonlinear Kerr Effect in a Plasmonic Superlattice

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Abstract

We propose a plasmonic superlattice with nonlinear Kerr medium in defect layer to realize slow light effect and demonstrate the group velocity control at telecom waveband (1550 nm) by peak intensity of input pulse. The tunable group velocity of surface plasmon polaritons is attributed to the change of dispersion of the superlattice caused by nonlinear Kerr effect. The method of controlling group velocity is analyzed by transfer matrix method based on characteristic impedance and confirmed by the finite-difference time-domain numerical simulation. Our method of control group velocity potentially applies in the tunable optics delay line.

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Acknowledgments

This work is supported by the Fundamental Research Funds for the Central Universities of China. (No. DL13BB15)

The Ethical Statement

  • The manuscript has not been submitted to more than one journal for simultaneous consideration.

  • The manuscript has not been published previously (partly or in full), unless the new work concerns an expansion of previous work.

  • A single study is not split up into several parts to increase the quantity of submissions and submitted to various journals or to one journal over time.

  • No data have been fabricated or manipulated (including images) to support our conclusions

  • No data, text, or theories by others are presented as if they were the authors’ own.

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Authors and Affiliations

  1. Department of Physics, Northeast Forestry University, Harbin, 150040, China

    Chunlei Li, Jiangbo Xin, Donghua Tang & Fengyou Hao

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  1. Chunlei Li
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  2. Jiangbo Xin
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  3. Donghua Tang
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  4. Fengyou Hao
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Correspondence to Chunlei Li.

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Li, C., Xin, J., Tang, D. et al. Control of Group Velocity Based on Nonlinear Kerr Effect in a Plasmonic Superlattice. Plasmonics 10, 1593–1596 (2015). https://doi.org/10.1007/s11468-015-9984-4

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  • DOI: https://doi.org/10.1007/s11468-015-9984-4

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