Cascade evolution and radiative recombination of quantum dot multiexcitons studied by time-resolved spectroscopy

被引:101
作者
Dekel, E [1 ]
Regelman, DV
Gershoni, D
Ehrenfreund, E
Schoenfeld, WV
Petroff, PM
机构
[1] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel
[2] Technion Israel Inst Technol, Inst Solid State, IL-32000 Haifa, Israel
[3] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
关键词
D O I
10.1103/PhysRevB.62.11038
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We resolve spatially, spectroscopically, and temporally the photoluminescence emission from single self-assembled InAs/GaAs quantum dots. The rich photoluminescence spectrum and its evolution with time after pulse excitation and with the density of excitation is experimentally measured and analyzed using a theoretical multiexciton model. The model accounts quantitatively for the dynamics of a small number of interacting electrons and holes confined in optically excited semiconductor quantum dots.
引用
收藏
页码:11038 / 11045
页数:8
相关论文
共 26 条
[1]   Biexciton versus exciton lifetime in a single semiconductor quantum dot [J].
Bacher, G ;
Weigand, R ;
Seufert, J ;
Kulakovskii, VD ;
Gippius, NA ;
Forchel, A ;
Leonardi, K ;
Hommel, D .
PHYSICAL REVIEW LETTERS, 1999, 83 (21) :4417-4420
[2]   QUANTUM MANY-BODY STATES OF EXCITONS IN A SMALL QUANTUM-DOT [J].
BARENCO, A ;
DUPERTUIS, MA .
PHYSICAL REVIEW B, 1995, 52 (04) :2766-2778
[3]   Exciton complexes in InxGa1-xAs/GaAs quantum dots [J].
Bayer, M ;
Gutbrod, T ;
Forchel, A ;
Kulakovskii, VD ;
Gorbunov, A ;
Michel, M ;
Steffen, R ;
Wang, KH .
PHYSICAL REVIEW B, 1998, 58 (08) :4740-4753
[4]   Microphotoluminescence studies of single quantum dots .1. Time-resolved experiments [J].
Bockelmann, U ;
Heller, W ;
Filoramo, A ;
Roussignol, P .
PHYSICAL REVIEW B, 1997, 55 (07) :4456-4468
[5]   SHARP-LINE PHOTOLUMINESCENCE AND 2-PHOTON ABSORPTION OF ZERO-DIMENSIONAL BIEXCITONS IN A GAAS/ALGAAS STRUCTURE [J].
BRUNNER, K ;
ABSTREITER, G ;
BOHM, G ;
TRANKLE, G ;
WEIMANN, G .
PHYSICAL REVIEW LETTERS, 1994, 73 (08) :1138-1141
[6]   Carrier-carrier correlations in an optically excited single semiconductor quantum dot [J].
Dekel, E ;
Gershoni, D ;
Ehrenfreund, E ;
Garcia, JM ;
Petroff, PM .
PHYSICAL REVIEW B, 2000, 61 (16) :11009-11020
[7]   Multiexciton spectroscopy of a single self-assembled quantum dot [J].
Dekel, E ;
Gershoni, D ;
Ehrenfreund, E ;
Spektor, D ;
Garcia, JM ;
Petroff, PM .
PHYSICAL REVIEW LETTERS, 1998, 80 (22) :4991-4994
[8]   Fine structure splitting in the optical spectra of single GaAs quantum dots [J].
Gammon, D ;
Snow, ES ;
Shanabrook, BV ;
Katzer, DS ;
Park, D .
PHYSICAL REVIEW LETTERS, 1996, 76 (16) :3005-3008
[9]  
Garcia JM, 1998, APPL PHYS LETT, V72, P3172, DOI 10.1063/1.121583
[10]   BIEXCITONS IN SEMICONDUCTOR QUANTUM DOTS [J].
HU, YZ ;
KOCH, SW ;
LINDBERG, M ;
PEYGHAMBARIAN, N ;
POLLOCK, EL ;
ABRAHAM, FF .
PHYSICAL REVIEW LETTERS, 1990, 64 (15) :1805-1807