| Interface Phonon Modes in Quantum Cascade Lasers |
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| 引用本文： | 于冰 曹俊诚 封松林. Interface Phonon Modes in Quantum Cascade Lasers[J]. 中国物理快报, 2005, 22(9): 2403-2406 |
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| 作者姓名： | 于冰 曹俊诚 封松林 |
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| 作者单位： | [1]State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 [2]Graduate School of Chinese Academy of Sciences, Beijing 100049 |
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| 基金项目： | Supported by the Fund for Distinguished Young Scholars from the National Natural Science Foundation of China under Grant No 60425415, the Major Project of the National Natural Science Foundation of China under Grant No 10390162, the Special Funds for Major State Basic Research of China under Grant No G20000683, and the Shanghai Municipal Commission of Science and Technology （03JC14082）. |
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| 摘 要： | We investigate the interface phonon assisted transition in GaAs/AlGaAs quantum cascade lasers （QCLs） by using the transfer matrix method based on the dieIectric continuum model. EIectron eigenvalues and eigenstates are calculated by solving Schroedinger equation and the Poisson equation self-consistently. The AlAs-like and upper GaAs-like interface phonon modes contribute most of the scattering rate. Interface phonon modes couple strongly with electrons at E2, and the magnitude of scattering rate between E2 and E1 is much larger than that between E3 and El, which is helpful for the laser inversion between E3 and E2. The calculation can be easily applied to the design and simulation of QCLs.
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| 关 键 词： | 声子界面 声子模型 量子论 激光技术 QCLs 传输矩阵 |
| 收稿时间： | 2005-03-25 |
| 修稿时间： | 2005-03-25 |
Interface Phonon Modes in Quantum Cascade Lasers |
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| Yu Bing;Cao JunCheng;Feng SongLin. Interface Phonon Modes in Quantum Cascade Lasers[J]. Chinese Physics Letters, 2005, 22(9): 2403-2406 |
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| Authors: | Yu Bing Cao JunCheng Feng SongLin |
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