Polarization dependence of intraband absorption in self-organized quantum dots

被引:24
作者
Chua, SJ [1 ]
Xu, SJ
Zhang, XH
Wang, XC
Mei, T
Fan, WJ
Wang, CH
Jiang, J
Xie, XG
机构
[1] Natl Univ Singapore, Inst Mat Res & Engn, Singapore 119260, Singapore
[2] Natl Univ Singapore, Ctr Optoelect, Dept Elect Engn, Singapore 119260, Singapore
[3] MBE Technol Pte Ltd, Singapore 118206, Singapore
关键词
D O I
10.1063/1.122347
中图分类号
O59 [应用物理学];
学科分类号
摘要
Photoluminescence and intraband absorption were investigated in n-doped self-organized InAs and In0.35Ga0.65As quantum dots grown on a GaAs substrate. Intraband absorption of the dots is strongly polarized along the growth axis in the mid infrared spectral range. The absorption is maximum at around 120 meV for InAs dots and at 130 meV for In0.35Ga0.65As dots. The experimental results on InAs dots are in agreement with published theoretical calculations. (C) 1998 American Institute of Physics. [S0003-6951(98)00740-2].
引用
收藏
页码:1997 / 1999
页数:3
相关论文
共 18 条
[1]   Mid-infrared photoconductivity in InAs quantum dots [J].
Berryman, KW ;
Lyon, SA ;
Segev, M .
APPLIED PHYSICS LETTERS, 1997, 70 (14) :1861-1863
[2]  
Chua S. J., 1997, P 9 INT WORKSH PHYS, P11
[3]   SPECTROSCOPY OF QUANTUM LEVELS IN CHARGE-TUNABLE INGAAS QUANTUM DOTS [J].
DREXLER, H ;
LEONARD, D ;
HANSEN, W ;
KOTTHAUS, JP ;
PETROFF, PM .
PHYSICAL REVIEW LETTERS, 1994, 73 (16) :2252-2255
[4]   VISIBLE PHOTOLUMINESCENCE FROM N-DOT ENSEMBLES AND THE LINEWIDTH OF ULTRASMALL ALYIN1-YAS ALXGA1-XAS QUANTUM DOTS [J].
FAFARD, S ;
LEON, R ;
LEONARD, D ;
MERZ, JL ;
PETROFF, PM .
PHYSICAL REVIEW B, 1994, 50 (11) :8086-8089
[5]   INAS/GAAS PYRAMIDAL QUANTUM DOTS - STRAIN DISTRIBUTION, OPTICAL PHONONS, AND ELECTRONIC-STRUCTURE [J].
GRUNDMANN, M ;
STIER, O ;
BIMBERG, D .
PHYSICAL REVIEW B, 1995, 52 (16) :11969-11981
[6]   ULTRANARROW LUMINESCENCE LINES FROM SINGLE QUANTUM DOTS [J].
GRUNDMANN, M ;
CHRISTEN, J ;
LEDENTSOV, NN ;
BOHRER, J ;
BIMBERG, D ;
RUVIMOV, SS ;
WERNER, P ;
RICHTER, U ;
GOSELE, U ;
HEYDENREICH, J ;
USTINOV, VM ;
EGOROV, AY ;
ZHUKOV, AE ;
KOPEV, PS ;
ALFEROV, ZI .
PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4043-4046
[7]  
Grundmann M, 1996, APPL PHYS LETT, V68, P979, DOI 10.1063/1.116118
[8]   Conduction band spectra in self-assembled InAs/GaAs dots: A comparison of effective mass and an eight-band approach [J].
Jiang, HT ;
Singh, JP .
APPLIED PHYSICS LETTERS, 1997, 71 (22) :3239-3241
[9]   The quantum dot spectrometer [J].
Jimenez, JL ;
Fonseca, LRC ;
Brady, DJ ;
Leburton, JP ;
Wohlert, DE ;
Cheng, KY .
APPLIED PHYSICS LETTERS, 1997, 71 (24) :3558-3560
[10]   LOW-THRESHOLD, LARGE T-O INJECTION-LASER EMISSION FROM (INGA)AS QUANTUM DOTS [J].
KIRSTAEDTER, N ;
LEDENTSOV, NN ;
GRUNDMANN, M ;
BIMBERG, D ;
USTINOV, VM ;
RUVIMOV, SS ;
MAXIMOV, MV ;
KOPEV, PS ;
ALFEROV, ZI ;
RICHTER, U ;
WERNER, P ;
GOSELE, U ;
HEYDENREICH, J .
ELECTRONICS LETTERS, 1994, 30 (17) :1416-1417