Linear and nonlinear optical properties of a hydrogenic impurity confined in a two-dimensional quantum dot: Effects of hydrostatic pressure, external electric and magnetic fields

被引：83
作者：
Rezaei, G. [1 ]
Kish, S. Shojaeian [1 ]
机构：
[1] Univ Yasuj, Coll Sci, Dept Phys, Yasuj 75914353, Iran
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2013年 / 53卷
关键词：
Optical absorption coefficient; Refractive index changes; Hydrogenic impurity; Electric and magnetic fields; Hydrostatic pressure; REFRACTIVE-INDEX CHANGES; ABSORPTION-COEFFICIENTS; 2ND-HARMONIC GENERATION; 3RD-HARMONIC GENERATION; BINDING-ENERGY; DONOR; TEMPERATURE;
D O I：
10.1016/j.spmi.2012.09.014
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this work, combined effects of external electric and magnetic fields, and hydrostatic pressure on the refractive index changes and optical absorption coefficients of a hydrogenic impurity confined in a two-dimensional parabolic quantum dot are studied. Energy eigenvalues and eigenvectors are calculated using the direct matrix diagonalization method and optical properties are obtained using the compact density matrix approach. It is found that the confinement potential strength, hydrogenic impurity, hydrostatic pressure, external electric and magnetic fields and the tilt angle 0 considerably change the transition energy between the subbands and dipole moment matrix elements. Therefore, these parameters have a great influence on the linear and the third-order nonlinear optical absorption coefficients as well as the refractive index changes of the system. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：99 / 112
页数：14
相关论文
共 38 条
[1]   Electric field effects on excitons in cylindrical quantum dots with asymmetric axial potential. Influence on the nonlinear optical properties [J].
Acosta, Ruben E. ;
Zapata, Alejandro ;
Duque, C. A. ;
Mora-Ramos, M. E. .
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2012, 44 (09) :1936-1944
[2]  
[Anonymous], 2006, Nonlinear Optics
[3]   Simultaneous effects of hydrostatic pressure and temperature on donor binding energy and photoionization cross section in Poschl-Teller quantum well [J].
Barseghyan, M. G. ;
Hakimyfard, Alireza ;
Lopez, S. Y. ;
Duque, C. A. ;
Kirakosyan, A. A. .
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2010, 42 (05) :1618-1622
[4]   Electronic structure and nonlinear optical rectification in a quantum dot: effects of impurities and external electric field [J].
Baskoutas, S. ;
Paspalakis, E. ;
Terzis, A. F. .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (39)
[5]   Effects of excitons in nonlinear optical rectification in semiparabolic quantum dots [J].
Baskoutas, Sotirios ;
Paspalakis, Emmanuel ;
Terzis, Andreas F. .
PHYSICAL REVIEW B, 2006, 74 (15)
[6]   Infrared second-order optical susceptibility in InAs/GaAs self-assembled quantum dots [J].
Brunhes, T ;
Boucaud, P ;
Sauvage, S ;
Lemaître, A ;
Gérard, JM ;
Glotin, F ;
Prazeres, R ;
Ortega, JM .
PHYSICAL REVIEW B, 2000, 61 (08) :5562-5570
[7]   Linear and nonlinear optical absorption coefficients and binding energy of a spherical quantum dot [J].
Cakir, Bekir ;
Yakar, Yusuf ;
Ozmen, Ayhan ;
Sezer, M. Ozgur ;
Sahin, Mehmet .
SUPERLATTICES AND MICROSTRUCTURES, 2010, 47 (04) :556-566
[8]   Hydrostatic pressure and electric field effects and nonlinear optical rectification of confined excitons in spherical quantum dots [J].
Duque, C. M. ;
Mora-Ramos, M. E. ;
Duque, C. A. .
SUPERLATTICES AND MICROSTRUCTURES, 2011, 49 (03) :264-268
[9]   Practical design and simulation of silicon-based quantum-dot qubits [J].
Friesen, M ;
Rugheimer, P ;
Savage, DE ;
Lagally, MG ;
van der Weide, DW ;
Joynt, R ;
Eriksson, MA .
PHYSICAL REVIEW B, 2003, 67 (12) :4
[10]   Dipole-allowed optical absorption in a parabolic quantum dot with two electrons [J].
Huang, Jinsheng ;
Libin .
PHYSICS LETTERS A, 2008, 372 (23) :4323-4326
1234