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首页> 外文期刊>Journal of Experimental and Theoretical Physics >The Theory of Coherent Optimized-Nanostructure Taking Laser into Account the Electron-Electron Interaction
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The Theory of Coherent Optimized-Nanostructure Taking Laser into Account the Electron-Electron Interaction

机译：考虑激光与电子相互作用的相干优化纳米结构理论

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摘要

An analytic theory of generation of a coherent laser (laser possessing a coherent electronic subsystem) operating on an optimized nanostructure is developed taking into account the electron-electron interaction. This interaction must be included since it may lead to a violation of stringent resonance conditions of coherent lasing of unipolar lasers in view of the fact that the population in such lasers increases with the pumping current. Using the Hartree-Fock approximation analytic solutions of the Schrodinger equation were obtained for a strong electromagnetic field with open boundary conditions. The expressions derived for polarization current and electron concentration make it possible to determine the power and frequency of generation as well as amplification profile and other characteiatics. It is shown that optimal lasing is realized even when electron-electron interactions are taken into account. In this optimal mode with tuning, no population inversion is required (the populations of working levels are identical). The lasing efficiency is equal to unity; the resonance-tunneling coherent pumping is effective since reflection is zero, and the amplification profile is not broadening by the field. Multimode generation stability, good spectral characteristics, and high limiting powers can be expected.
机译：考虑到电子-电子相互作用，开发了一种在优化的纳米结构上运行的相干激光器（具有相干电子子系统的激光器）的产生的解析理论。考虑到这种相互作用的数量随泵浦电流的增加而增加，因此必须包括这种相互作用，因为它可能导致违反单极激光器相干发射的严格共振条件。对于具有开放边界条件的强电磁场，使用Hartree-Fock逼近式获得了Schrodinger方程的解析解。极化电流和电子浓度的表达式使得确定功率和频率以及放大曲线和其他特性成为可能。结果表明，即使考虑电子-电子相互作用，也可以实现最佳激光发射。在具有调整的最佳模式下，不需要总体反转（工作级别的总体是相同的）。激光发射效率等于1。由于反射为零，因此共振隧穿相干泵浦是有效的，并且放大分布不会因电场而变宽。可以预期多模产生的稳定性，良好的光谱特性和高限制功率。

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