Self-consistent theory of the gain linewidth for quantum-cascade lasers
Self-consistent theory of the gain linewidth for quantum-cascade lasers
复制标题
量子级联激光器增益线宽的自洽理论
DOI：
10.1063/1.1851004
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发表时间：
2004
影响因子：
4
通讯作者：
A. Wacker
中科院分区：
文献类型：
--
作者：
F. Banit;S.;A. Knorr;A. Wacker
子带间跃迁的线宽可以显着降低到低于所涉及的状态的寿命加宽的总和，如果散射环境是类似的两个状态。这是研究内的非平衡绿色函数的方法在这里。我们发现，最近，相对较低的掺杂，太赫兹量子级联激光器的效果是特别相关的。
The linewidth in intersubband transitions can be significantly reduced below the sum of the lifetime broadening for the involved states, if the scattering environment is similar for both states. This is studied within a nonequilibrium Green function approach here. We find that the effect is of particular relevance for a recent, relatively low doped, Terahertz quantum-cascade laser.