论文标题
量子井中电流的光子阻力
The drag of photons by electric current in quantum wells
论文作者
论文摘要
量子孔中的电流流量破坏了空间反转对称性，这导致辐射传递对电流和光子波矢量的相对取向的依赖性，该现象可以命名为光子的电流阻力。我们已经在量子井中对量子孔中的跨带和交换相关效应产生了这种影响。结果表明，光子的当前阻力的效果源于由于电子在动量空间中电子的重新分布而导致的子带光学转变的不对称性。我们表明，直流电流的存在导致跨带共振位置的移动，并影响量子井中的传输系数和吸光度。
The flow of electric current in quantum well breaks the space inversion symmetry, which leads to the dependence of the radiation transmission on the relative orientation of current and photon wave vector, this phenomenon can be named current drag of photons. We have developed a microscopic theory of such an effect for intersubband transitions in quantum wells taking into account both depolarization and exchange-correlation effects. It is shown that the effect of the current drag of photons originates from the asymmetry of intersubband optical transitions due to the redistribution of electrons in momentum space. We show that the presence of dc electric current leads to the shift of intersubband resonance position and affects both transmission coefficient and absorbance in quantum wells.
