光量子阱结构束缚态对介电常数和厚度的响应  

Effect of dielectric constant and thickness on the confined state in a photonic quantum well structure

作　　者：陈海波[1] 胡素梅[1] 高英俊[2] 

机构地区：[1]茂名学院物理系,茂名525000 [2]广西大学物理科学与工程技术学院,南宁530004

出　　处：《激光技术》2010年第1期37-40,共4页Laser Technology

基　　金：茂名学院自然科学基金资助项目(200853)

摘　　要：为了考察影响光量子阱束缚态的因素,采用传输矩阵法计算了不同介电常数和介质厚度对光量子阱结构的传输特性,发现光量子阱结构的束缚态的频率随介电常数和厚度变化而变化。通过微小地改变阱区和垒区介质的介电常数和厚度可改变束缚态的频率,且阱区和垒区介质的介电常数和厚度的变化与束缚态频率的变化都呈良好的线性关系,阱区介质的介电常数和厚度的变化对束缚态频率的变化大于垒区。结果表明,光子的束缚效应将导致频率的量子化。此结果为设计所需要的束缚态频率光量子阱结构提供了理论依据。In order to study the factors affecting the confined state in a photonic quantum well （ PQW ） structure, the transmission characteristics of the PQW structure with different dielectric thickness and constants were studied by means of optical transfer matrix,then it was known that the frequency in the PQW structure changed with the dielectric constants and thickness. The frequency in a confined state can be changed linearly by changing the dielectric thickness and constants in wells and barriers a little. The dependence of the confined frequency on the dielectric thickness and dielectric constants in wells is more than that in barriers. The investigation results might be used to obtain the desired frequency in the confined state in a PQW structure.

关 键 词：物理光学 光量子阱 介质厚度 介电常数 束缚态 

分 类 号：O431[机械工程—光学工程]