Influence of dielectric environment on quantum-well luminescence spectra
Influence of dielectric environment on quantum-well luminescence spectra
复制标题
介电环境对量子阱发光光谱的影响
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
J. Moloney
中科院分区：
文献类型：
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作者：
M. Schafer;W. Hoyer;M. Kira;S. W. Koch;J. Moloney
提出了任意一维堆叠结构中量子阱光致发光的完全微观理论。对于强耦合配置，求解了完整的半导体发光方程。对于弱耦合机制，根据介电结构的知识，直接从半导体发光方程导出频率相关的滤波器函数。通过该滤波器功能，检测到的发光可以与真空中的纯量子阱发射相关联。该方法被概括为包括由于依赖于光子环境的辐射衰减而对发射峰宽度进行校正，并且该校正被证明可以单独从模式函数获得。该方法的适用性在常模耦合开始之前经过了彻底的测试。
A fully microscopical theory for the photoluminescence of a quantum-well in an arbitrary one-dimensional stack structure is presented. For strong-coupling configurations, the full semiconductor luminescence equations are solved. For the weak-coupling regime, a frequency-dependent filter function is directly derived from the semiconductor luminescence equations with the knowledge of the dielectric structure. Via that filter function, the detected luminescence can be related to the pure quantum-well emission in vacuum. The approach is generalized to include corrections to the emitted peak width due to the photonic-environment-dependent radiative decay, and the corrections are shown to be obtainable from the mode functions alone. The applicability of the method is thoroughly tested up to the onset of normal-mode coupling.