Photon antibunching in single CdSe/ZnS quantum dot fluorescence

被引:275
作者
Lounis, B [1 ]
Bechtel, HA
Gerion, D
Alivisatos, P
Moerner, WE
机构
[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA
[2] Univ Bordeaux 1, CPMOH, F-33405 Talence, France
[3] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0009-2614(00)01042-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We investigate the fluorescence intensity correlation function of a single CdSe quantum dot (QD) using a start-stop experiment. We observe strong photon antibunching, a signature of non-classical light emission, over a large range of intensities (0.1-100 kW/cm(2)). The lack of coincidence at zero time delay indicates a highly efficient Auger ionization process, which suppresses multi-photon emission in these colloidal QDs. Using careful analysis of the saturation behavior of the coincidence histograms, the absorption cross-section of a single QD has also been derived. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:399 / 404
页数:6
相关论文
共 20 条
  • [1] Evidence for a thermal contribution to emission intermittency in single CdSe/CdS core/shell nanocrystals
    Banin, U
    Bruchez, M
    Alivisatos, AP
    Ha, T
    Weiss, S
    Chemla, DS
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1999, 110 (02) : 1195 - 1201
  • [2] PHOTON ANTIBUNCHING IN THE FLUORESCENCE OF A SINGLE DYE MOLECULE TRAPPED IN A SOLID
    BASCHE, T
    MOERNER, WE
    ORRIT, M
    TALON, H
    [J]. PHYSICAL REVIEW LETTERS, 1992, 69 (10) : 1516 - 1519
  • [3] Regulated and entangled photons from a single quantum dot
    Benson, O
    Santori, C
    Pelton, M
    Yamamoto, Y
    [J]. PHYSICAL REVIEW LETTERS, 2000, 84 (11) : 2513 - 2516
  • [4] Semiconductor nanocrystals as fluorescent biological labels
    Bruchez, M
    Moronne, M
    Gin, P
    Weiss, S
    Alivisatos, AP
    [J]. SCIENCE, 1998, 281 (5385) : 2013 - 2016
  • [5] CHAN WCW, 1998, SCIENCE, V281
  • [6] COLVIN VL, 1994, NATURE, V370, P354, DOI 10.1038/370354a0
  • [7] ELECTROLUMINESCENCE FROM CDSE QUANTUM-DOT POLYMER COMPOSITES
    DABBOUSI, BO
    BAWENDI, MG
    ONITSUKA, O
    RUBNER, MF
    [J]. APPLIED PHYSICS LETTERS, 1995, 66 (11) : 1316 - 1318
  • [8] DAHAN M, 2000, IN PRESS
  • [9] Random telegraph signal in the photoluminescence intensity of a single quantum dot
    Efros, AL
    Rosen, M
    [J]. PHYSICAL REVIEW LETTERS, 1997, 78 (06) : 1110 - 1113
  • [10] Photoluminescence spectroscopy of single CdSe nanocrystallite quantum dots
    Empedocles, SA
    Norris, DJ
    Bawendi, MG
    [J]. PHYSICAL REVIEW LETTERS, 1996, 77 (18) : 3873 - 3876