Splitting of excitons and biexcitons in coupled InAs quantum dot molecules

被引：16
|
作者：
Xu, XL
Williams, DA
Cleaver, JRA
机构：
[1] Univ Cambridge, Cavendish Lab, Microelect Res Ctr, Cambridge CB3 0HE, England
[2] Univ Cambridge, Cavendish Lab, Hitachi Cambridge Lab, Cambridge CB3 0HE, England
来源：
APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 01期
关键词：
D O I：
10.1063/1.1842861
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Coupling in laterally coupled InAs quantum dot molecules has been observed by conventional microscopic photoluminescence spectroscopy. At low excitation intensity, splitting of exciton emission is observed, and this is ascribed to recombination of bonding and antibonding states when two quantum dots are coupled. With increasing excitation intensity, splitting of biexciton emission because of coupling is observed on both sides of the exciton peaks. The splitting of both exciton and biexciton peaks increases with increasing energy, which implies a large wave function overlap at high energy. (C) 2005 American Institute of Physics.
引用
下载
收藏
页码：012103 / 1
页数：3
相关论文
共 50 条
  • [21] Autler-Townes splitting of excitons and biexcitons in semiconductors
    Khadzhi, P. I.
    Nadkin, L. Yu.
    Tkachenko, D. V.
    ICONO 2005: NONLINEAR OPTICAL PHENOMENA, 2006, 6259
  • [22] Observation of multicharged excitons and biexcitons in a single InGaAs quantum dot -: art. no. 161305
    Finley, JJ
    Fry, PW
    Ashmore, AD
    Lemaître, A
    Tartakovskii, AI
    Oulton, R
    Mowbray, DJ
    Skolnick, MS
    Hopkinson, M
    Buckle, PD
    Maksym, PA
    PHYSICAL REVIEW B, 2001, 63 (16)
  • [23] Electronic and optical properties of single excitons and biexcitons in type-II quantum dot nanocrystals
    Koc, Fatih
    Sahin, Mehmet
    JOURNAL OF APPLIED PHYSICS, 2014, 115 (19)
  • [24] Oscillatory acoustic phonon relaxation of excitons in quantum dot molecules
    Rolon, Juan E.
    Wijesundara, Kushal C.
    Ulloa, Sergio E.
    Bracker, Allan S.
    Gammon, Daniel
    Stinaff, Eric A.
    JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2012, 29 (02) : A146 - A153
  • [25] Fine structure splitting of quantum dot excitons: Role of geometry and environment
    Abbarchi, M.
    Kuroda, T.
    Mastrandrea, C.
    Vinattieri, A.
    Sanguinetti, S.
    Mano, T.
    Sakoda, K.
    Gurioli, M.
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2010, 42 (04): : 881 - 883
  • [26] Biexcitons in semiconductor quantum dot ensembles
    Moody, Galan
    Singh, Rohan
    Li, Hebin
    Akimov, Ilya A.
    Bayer, Manfred
    Reuter, Dirk
    Wieck, Andreas D.
    Bracker, Allan S.
    Gammon, Daniel
    Cundiff, Steven T.
    PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2013, 250 (09): : 1753 - 1759
  • [27] Energy relaxation of electrons in InAs/GaAs quantum dot molecules
    Ortner, G
    Oulton, R
    Kurtze, H
    Schwab, M
    Yakovlev, DR
    Bayer, M
    Fafard, S
    Wasilewski, Z
    Hawrylak, P
    PHYSICAL REVIEW B, 2005, 72 (16)
  • [28] The engineering and properties of InAs quantum dot molecules in a GaAs matrix
    Samsonenko, YB
    Cirlin, GE
    Tonkikh, AA
    Polyakov, NK
    Kryzhanovskaya, NV
    Ustinov, VM
    Vorob'ev, LE
    Firsov, DA
    Shalygin, VA
    Zakharov, ND
    Werner, P
    Andreev, A
    SEMICONDUCTORS, 2005, 39 (01) : 124 - 126
  • [29] Shape, strain, and ordering of lateral InAs quantum dot molecules
    Krause, B
    Metzger, TH
    Rastelli, A
    Songmuang, R
    Kiravittaya, S
    Schmidt, OG
    PHYSICAL REVIEW B, 2005, 72 (08)
  • [30] Two-photon spectroscopy of InAs Quantum Dot Molecules
    Scheibner, M.
    Bracker, A. S.
    Kim, D.
    Ponomarev, I. V.
    Gammon, D.
    2009 CONFERENCE ON LASERS AND ELECTRO-OPTICS AND QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2009), VOLS 1-5, 2009, : 2337 - 2338
12345