CAJ | 학술논문

在介电连续近似下,推导和讨论了任意层的耦合量子阱系统中的受限纵光学(LO)声子模与界面光学(IO)声子模.为了描述受限纵光学声子的振动,采用了一个正确的LO声子势函数,同时,为了处理系统中的界面光学声子,采用了行列式解线性方程组的方法,得到了量子化的LO与IO声子场以及它们的电-声子相互作用哈密顿.本项工作可以看作是对以前一些工作的普遍化,它提供了一种解决声子效应对多层耦合量子阱系统影响问题的统一方法.
재개전련속근사하,추도화토론료임의층적우합양자정계통중적수한종광학(LO)성자모여계면광학(IO)성자모.위료묘술수한종광학성자적진동,채용료일개정학적LO성자세함수,동시,위료처리계통중적계면광학성자,채용료행렬식해선성방정조적방법,득도료양자화적LO여IO성자장이급타문적전-성자상호작용합밀돈.본항공작가이간작시대이전일사공작적보편화,타제공료일충해결성자효응대다층우합양자정계통영향문제적통일방법.
Within the framework of the dielectric continuum approximation, the confined longitudinaloptical (LO) and interface optical (IO) phonon modes in an n-layer coupling quantum well system are deduced and discussed. To describe the vibrating of the LO phonons, a proper eigenfunction for LO phonon modes is adopted. To deal with the IO phonon modes, determinant methods are employed. The quantized LO and IO phonon fields as well as their corresponding electron-phonon interaction Hamiltonians are also derived. This work can be regarded as a generalization of some previous works, and it provides a uniform method to solve the phonon effects on the multi-layer coupling quantum well systems.