Utilizing quasi - phasematched ( qpm ) technique to achieve a given useful laser frequency conversion is a practical and challenging topic 利用准相位匹配( qpm )技术在光学超晶格中实现特定的可实用化的激光频率变换，在目前是一个富有实际意义和挑战性的课题。
The mi - crocavity of 1 - - d pc and 1 - - d pc sl structure are made . we study the re - flection and transmission characteristics of the microcavities 制作了一维光子晶体结构的微腔和一维光子晶体超晶格结构的微腔，研究了由此组成的微腔的反射、透射特性。
In this thesis , we detailedly investigate the effect of elastic scattering on the electron dynamics and the current response in the two - band superlattice 本文采用双带紧束缚模型，详细地研究了弹性散射机制对超晶格中的电子动力学行为及电流响应的影响。
These results indicate that lattice mismatch is the main reason why minimum thermal conductivity has not been observed in a large number of experimental studies 这一研究结果表明，材料的晶格失配是大多数实验研究中没有发现超晶格最小导热系数的主要原因。
Electronic transport in a quantum - dot superlattice , consisting of an array of negative potential , has been studied by making use of the recursive green ' s function method 摘要用递归格林函数方法研究了一种周期排列而成的量子点超晶格结构中的电子输运性质。
In this paper , various frequency conversion by qpm technique will be studied in theoretically and experimentally and the fabrication methods of osls will be presented : 1 本文从理论和实验上研究了利用准相位匹配技术的各种变频效应及光学超晶格的制备方法。
At same time . osl ( optical supperlattice ) does n ' t change the optic property of crytal . and only modulate the direction of the tensor d33 periodically 同时，光学超晶格不改变晶体的光学性质，仅是对晶体的极化率进行周期调制，它扩大了现有晶体的应用范围。
3 . we have analyzed the single layer material , quantum well material and material comprise of superlattice by using kinematics and dynamics in a comparative way 3 .对单外延层结构材料、量子阱结构材料、含超晶格结构材料等，分别应用动力学理论和运动学理论作了对比分析。
Abstract : the history of studies on molecule assembly technique and superlattice is summarized . several methods of preparing superlattices by molecule assembly technique are introduced 文摘:总结了分子组装技术及超晶格研究的历史，介绍了分子组装技术制备超晶格的几种方法。
Quantum dot is a new kind of low - dimensional quantum structure , which , together with quantum wire , is developed after superlattices and quantum well in the late 80 ’ s of last the century 量子点是继超晶格和量子阱之后,于上个世纪80年代中后期和量子线同时发展起来的一种新型低维量子结构。
