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The effect of phonon extraction level separation on the performance of three-well resonant-phonon terahertz quantum-cascade lasers

机译:声子提取能级分离对三阱共振声子太赫兹量子级联激光器性能的影响

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摘要

The authors present a simulation and experimental study on the effect of phonon extraction level separation on the performance of GaAs-based three-well resonant-phonon terahertz quantum-cascade lasers (QCLs). The phonon extraction level separation is varied from 30 to 42 meV. Because of the efficient longitudinal-optical phonon scattering, the 36 meV QCL shows the largest gain, the best temperature performance and the highest output power. As for the lower (30 meV) or higher (42 meV) energy separation QCLs,rn the electron-longitudinal-optical phonon interaction still works by involving a transfer of in-plane momentum. The measured lasing characteristics are in qualitative agreement with simulation.
机译:作者介绍了声子提取能级分离对基于GaAs的三阱共振声子太赫兹量子级联激光器(QCL)性能的影响的仿真和实验研究。声子提取能级间隔在30至42 meV之间变化。由于有效的纵向光学声子散射,36 meV QCL表现出最大的增益,最佳的温度性能和最高的输出功率。至于较低的(30 meV)或较高的(42 meV)能量分离QCL,电子-纵向-光子声子相互作用仍然通过涉及面内动量传递而起作用。测得的激光特性与仿真定性一致。

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  • 来源
    《Semiconductor science and technology》 |2009年第6期|148-151|共4页
  • 作者单位

    State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050,People's Republic of China;

    State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050,People's Republic of China;

    Institute for Microstructural Sciences, National Research Council, Ottawa, ON K1A 0R6, Canada;

    Institute for Microstructural Sciences, National Research Council, Ottawa, ON K1A 0R6, Canada;

    Institute for Microstructural Sciences, National Research Council, Ottawa, ON K1A 0R6, Canada;

    Institute for Microstructural Sciences, National Research Council, Ottawa, ON K1A 0R6, Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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  • 入库时间 2022-08-18 01:31:57

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