Intersubband spectroscopy of quantum cascade lasers under operating conditions

D. G. Revin; L. R. Wilson; J. W. Cockburn; A. B. Krysa; J. S. Roberts; R. J. Airey

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Intersubband spectroscopy of quantum cascade lasers under operating conditions

机译：工作条件下量子级联激光器的子带间光谱

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A technique is described that enables the mid infrared spectroscopic study of the intersubband electron distribution in quantum cascade lasers under operating conditions. By measuring the transmission of a broadband thermal source through the waveguide of a λ ～ 7.4 μm InGaAs/AlInAs/InP quantum cascade laser, the redistribution of the electrons in the active region confined levels has been investigated for a wide range of operating currents and temperatures. This technique also allows direct determination of key parameters such as the temperature of the core region under operating conditions, the modal gain coefficient, and the waveguide loss.

机译：描述了一种技术，该技术能够在工作条件下对量子级联激光器中的子带间电子分布进行中红外光谱研究。通过测量宽带热源通过λ〜7.4μmInGaAs / AlInAs / InP量子级联激光器的波导的传输，研究了电子在有源区受限能级中的重新分布，适用于各种工作电流和温度范围。该技术还可以直接确定关键参数，例如工作条件下的核心区域温度，模态增益系数和波导损耗。

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来源
《Applied Physics Letters》 |2006年第13期|p.131105.1-131105.3|共3页
作者
D. G. Revin; L. R. Wilson; J. W. Cockburn; A. B. Krysa; J. S. Roberts; R. J. Airey;
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作者单位

Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom;

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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
中图分类应用物理学;计量学;
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2. Recent results in quantum cascade lasers and intersubband transitions in GaN/AlGaN multiple quantum wells [J] . Gmachl C., Ng HM., Paiella R., Physica, E. Low-dimensional systems & nanostructures . 2002,第2a4期

机译：GaN / AlGaN多量子阱中量子级联激光器和子带间跃迁的最新结果
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4. Quantum cascade laser: a unipolar intersubband semiconductor laser operating at 125 K [C] . Capasso, F., Faist, . 1994

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5. Design, fabrication, and optimization of quantum cascade laser cavities and spectroscopy of the intersubband gain. [D] . Dirisu, Afusat Olayinka. 2009

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6. Short-period scattering-assisted terahertz quantum cascade lasers operating at high temperatures [O] . Li Wang, Tsung-Tse Lin, Ke Wang, -1

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7. Suitable factorization of the total intersubband scattering rates for efficient calculation of the current densities and gain characteristics in quantum cascade lasers [O] . S. S. Kurlov 2018

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8. Strain-free Ge/GeSiSn Quantum Cascade Lasers Based on L-Valley Intersubband Transitions [R] . Soret, R. A. , Sun, G. , Cheng, H. , 2007

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Intersubband spectroscopy of quantum cascade lasers under operating conditions

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