Optical transitions of positively charged excitons and biexcitons in single InAs quantum dots

被引：10

作者：

Chang, X. Y. ^{[1
]}

Dou, X. M. ^{[1
]}

Sun, B. Q. ^{[1
]}

Xiong, Y. H. ^{[1
]}

Niu, Z. C. ^{[1
]}

Ni, H. Q. ^{[1
]}

Jiang, D. S. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, SKLSM, Beijing 100083, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 106卷 / 10期

关键词：

FINE-STRUCTURE; TRION;

D O I：

10.1063/1.3262607

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate fine structures observed in the optical transitions of positively charged excitons and biexcitons in single quantum dots. We show that double charged biexciton XX2+ emits into a hot double charged exciton X2+* at first, and then relaxes into charged excitons X2+ or X2+ states via phonon scattering or Auger process respectively. XX2+ gives rise to two elliptically polarized emission lines due to the mixing of two lower-levels in the final state. X2+ causes two optical transitions with different polarizations, i.e., a linearly polarized emission with a fine structure splitting of 45 mu eV and a circularly polarized emission with twofold degeneracy. (C) 2009 American Institute of Physics. [doi:10.1063/1.3262607]

引用

页数：4

共 16 条

[11] Size-dependence of anisotropic exchange interaction in InAs/GaAs quantum dots [J].

Seguin, R. ;

Rodt, S. ;

Schliwa, A. ;

Poetschke, K. ;

Pohl, U. W. ;

Bimberg, D. .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2006, 243 (15) :3937-3941

[12] Size-dependent fine-structure splitting in self-organized InAs/GaAs quantum dots -: art. no. 257402 [J].

Seguin, R ;

Schliwa, A ;

Rodt, S ;

Pötschke, K ;

Pohl, UW ;

Bimberg, D .

PHYSICAL REVIEW LETTERS, 2005, 95 (25)

[13] Correlated photon-pair emission from a charged single quantum dot - art. no. 235308 [J].

Ulrich, SM ;

Benyoucef, M ;

Michler, P ;

Baer, N ;

Gartner, P ;

Jahnke, F ;

Schwab, M ;

Kurtze, H ;

Bayer, M ;

Fafard, S ;

Wasilewski, Z ;

Forchel, A .

PHYSICAL REVIEW B, 2005, 71 (23)

[14] Fine structure of highly charged excitons in semiconductor quantum dots [J].

Urbaszek, B ;

Warburton, RJ ;

Karrai, K ;

Gerardot, BD ;

Petroff, PM ;

Garcia, JM .

PHYSICAL REVIEW LETTERS, 2003, 90 (24) :4-247403

[15] Hole-hole and electron-hole exchange interactions in single InAs/GaAs quantum dots [J].

Warming, T. ;

Siebert, E. ;

Schliwa, A. ;

Stock, E. ;

Zimmermann, R. ;

Bimberg, D. .

PHYSICAL REVIEW B, 2009, 79 (12)

[16] Quantum optics with single quantum dot devices [J].

Zwiller, V ;

Aichele, T ;

Benson, O .

NEW JOURNAL OF PHYSICS, 2004, 6 :1-23

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