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Recent advances in the research toward graphene-based terahertz lasers

机译:石墨烯基太赫兹激光器研究的最新进展

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摘要

This paper reviews recent advances in the research and development toward the graphene-based terahertz (THz) lasers. Mass-less Dirac Fermions of electrons and holes in gapless and linear symmetric band structures in graphene enable a gain in a wide THz frequency range under optical or electrical pumping. The excitation of the surface plasmon polaritons in the population-inverted graphene dramatically enhances the THz gain. Photon-emission-assisted resonant tunneling in a double-graphene-layered nano-capacitor structure also strongly enhances the THz gain. Novel graphene-based heterostructures using these physical mechanisms for the current-injection driven THz lasing are discussed. Their superior gain-spectral properties are analyzed and the laser cavity structures for the graphene THz laser implementation are discussed.
机译:本文回顾了石墨烯基太赫兹(THz)激光器研究和开发的最新进展。石墨烯中无间隙和线性对称能带结构中电子和空穴的无质量狄拉克费米子能在光或电泵浦下在宽THz频率范围内实现增益。人口反转石墨烯中表面等离激元极化子的激发极大地提高了THz增益。双石墨烯层的纳米电容器结构中的光子发射辅助共振隧穿也极大地提高了THz增益。讨论了使用这些物理机制的新颖的基于石墨烯的异质结构,用于电流注入驱动的THz激光。分析了它们优异的增益光谱特性,并讨论了用于石墨烯太赫兹激光器的激光腔结构。

著录项

  • 来源
    《Novel in-plane semiconductor lasers XIV》|2015年|938219.1-938219.10|共10页
  • 会议地点 San Francisco CA(US)
  • 作者单位

    Research Institute of Electrical Communication, Tohoku University, Sendai 9808577, Japan;

    Research Institute of Electrical Communication, Tohoku University, Sendai 9808577, Japan;

    Research Institute of Electrical Communication, Tohoku University, Sendai 9808577, Japan;

    Research Institute of Electrical Communication, Tohoku University, Sendai 9808577, Japan;

    Department of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan;

    Institute for Physics of Microstructures, Russian Academy of Sciences, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod 603950, Russia;

    Kotelnikov Institute of Radio Engineering and Electronics (Saratov Branch), Russian Academy of Science, 410019 Saratov Russia,Saratov State University, Saratov 410012, Russia;

    Dept. of Electrical Engineering, University at Buffalo, Buffalo, NY 14260, USA;

    Dept. of Electrical, Electronics, and System Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA;

    Research Institute of Electrical Communication, Tohoku University, Sendai 9808577, Japan;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Graphene; terahertz; laser; current-injection; plasmon-polariton; resonant-tunneling;

    机译:石墨烯太赫兹激光;电流注入等离子体激元共振隧道;

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