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Mode control of random microresonators consisting of scattering particles

机译：由散射粒子组成的随机微谐振器的模式控制

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摘要

We report on the tuneabilities of Anderson localized light in random scattering systems and its lasing characteristics. By use of FDTD method, we investigated the impulse response of two-dimensional scattering systems consisting of closely packed dielectric particles, and analyzed the localized modes. We revealed the frequencies of the localized modes to be capable of being tuned by changing the structural parameters of the system: diameter, filling factor, and refractive index of the particles. It was also found to be able to tune the Q (quality) factors of the localized modes by changing the system size of the entire medium. Furthermore, by combining Maxwell's equations with rate equations for electron's system, we also theoretically demonstrate how the localized area serves as a laser "resonator" and random lasing is induced.
机译：我们报告了安德森局部光在随机散射系统中的可调谐性及其激射特性。通过使用FDTD方法，我们研究了由紧密堆积的介电粒子组成的二维散射系统的脉冲响应，并分析了局部模式。我们揭示了可以通过更改系统的结构参数（直径，填充因子和粒子的折射率）进行调整的局部模式的频率。还发现通过更改整个介质的系统大小，可以调整局部模式的Q（质量）因数。此外，通过将麦克斯韦方程与电子系统的速率方程相结合，我们还从理论上证明了局部区域是如何充当激光“谐振器”并引起随机激射的。

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  • 来源
    《Gas flow, chemical lasers, and high-power lasers》|2010年|p.77511A.1-77511A.9|共9页
  • 会议地点 Sofia(BG);Sofia(BG)
  • 作者

    S. Takeda; S. Hamada; M. Terakawa; T. Saiki; M. Obara;

  • 作者单位

    Department of Electronics and Electrical Engineering,Faculty of Science and Technology,Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan;

    Department of Electronics and Electrical Engineering,Faculty of Science and Technology,Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan;

    Department of Electronics and Electrical Engineering,Faculty of Science and Technology,Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan;

    Department of Electronics and Electrical Engineering,Faculty of Science and Technology,Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan;

    Department of Electronics and Electrical Engineering,Faculty of Science and Technology,Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 激光技术、微波激射技术;
  • 关键词

    random lasing; scattering; Anderson localization; FDTD;

    机译：随机激射散射;安德森本地化； FDTD;

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