谱导数法在光谱研究GaInAs/InP和GaInP/AlGaInP多量子阱中的应用  

Spectroscopic derivative in optical study of GaInAs/InP and GaInP/AlGaInP multiple quantum wells

作　　者：邵军[1] 

机构地区：[1]中国科学院上海技术物理研究所红外物理国家重点实验室

出　　处：《物理学报》2003年第10期2534-2540,共7页Acta Physica Sinica

基　　金：上海市自然科学基金 (批准号 :0 2ZA14 114 );国家自然科学基金 (批准号 :6 0 2 76 0 0 6 );国家重点基础研究专项经费 (批准号 :G0 0 1CB30 95)资助的课题~~

摘　　要：在简要讨论谱导数法物理机理的基础上 ,给出了其在光吸收谱和光反射谱方法研究张应变GaInAs InP和GaInP AlGaInP多量子阱中的成功应用实例 .比较了不同阶谱导数对测定激子跃迁能量的影响 ,论及了其与双调制谱方法、曲线拟合方法的区别 .指出了谱导数法在光谱研究GaInAs InP和GaInP AlGaInP多量子阱中的重要性和易行性 .With a brief discussion of the physical mechanism of spectroscopic derivative, t he successful applications are given in optical absorption and reflectivity stud y of Ga xIn 1-xAs/InP and Ga xIn 1-xP/AlGaInP mult iple quantum wells. The effects of different orders of the derivative are compar ed with each other, and the difference is pointed out bet ween this method and the curve-fitting method as well as the double modulation metho d. A conclusion is reached that the method is practical and reliable in the opti cal study of wide band-gap quantum wells.

关 键 词：谱导数法 物理机理 光谱研究 半导体 光吸收谱 光反射谱 多量子阱 激子跃迁 GAINAS/INP GAINP/ALGAINP 

分 类 号：O471.1[理学—半导体物理]