Size-dependent linear and non-linear optical response of single carrier two-dimensional quantum dots

被引：6
|
作者：
Ghosh, Manas [3 ]
Bhattacharyya, S. P. [1 ,2 ]
机构：
[1] Indian Assoc Cultivat Sci, Dept Phys Chem, Kolkata 700032, India
[2] Indian Assoc Cultivat Sci, Ctr Atom Mol & Opt Phys, Kolkata 700032, India
[3] Visva Bharati Univ, Dept Chem, Chem Phys Sect, Santini Ketan 731235, W Bengal, India
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2008年 / 69卷 / 04期
关键词：
nanostructures; optical materials; anharmonicity; optical properties; electronic structure;
D O I：
10.1016/j.jpcs.2007.11.011
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We explore the pattern of size dependence of linear and non-linear optical (NLO) responses of one-electron quantum dots in two dimensions with or Without anharmonicity in the confinement potential. For some fixed values of transverse magnetic field strength (omega(c)) and harmonic confinement potential (omega(0)), the influence of the size of the dot on the linear (alpha), the first (beta) and the second (gamma) NLO responses of the system computed through a finite field linear variational route is analysed. Size-dependent maximization is predicted to be feasible for the quadratic hyperpolarizability. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：981 / 991
页数：11
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