An experimental setup for room temperature waveguide spectroscopy of self-assembled quantum dots

被引：1
|
作者：
Visimberga, G.
De Giorgi, M.
Passaseo, A.
De Vittorio, M.
机构：
[1] Distretto Tecnol ISUFI, CNR, INFM, Natl Nanotechnol Lab, I-73100 Lecce, Italy
[2] Univ Lecce, Dipartimento Fis, I-73100 Lecce, Italy
来源：
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2006年 / 8卷 / 07期
关键词：
quantum dots; absorption; in-plane transmission; carrier dynamics; thermal escape;
D O I：
10.1088/1464-4258/8/7/S32
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work we present the realization of an experimental setup to measure the absorption spectrum of low planar density active media in nanoscale devices. The experimental technique employs in-plane light transmission through a waveguide embedding the active medium. It has been applied to the investigation of the room temperature optical properties of low density self-assembled InGaAs/GaAs quantum dots (QDs), emitting around 1.3 mu m. A detailed analysis of the obtained spectra showed the occurrence of a Stokes shift which after inspection turned out to be related to the thermally activated carrier migration throughout the QD ensemble.
引用
收藏
页码：S514 / S517
页数：4
相关论文
共 50 条
  • [1] Room temperature photoluminescence of individual self-assembled quantum dots
    Zora, A.
    Simserides, C.
    Triberis, G. P.
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2008, 40 (05): : 1687 - 1689
  • [2] Absorption spectroscopy of single InAs self-assembled quantum dots
    Alèn, B
    Karrai, K
    Warburton, RJ
    Bickel, F
    Petroff, PM
    Martínez-Pastor, J
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 21 (2-4): : 395 - 399
  • [3] 1.3 μm room temperature emission from InAs/GaAs self-assembled quantum dots
    Murray, R
    Childs, D
    Malik, S
    Siverns, P
    Roberts, C
    Hartmann, JM
    Stavrinou, P
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1999, 38 (1B): : 528 - 530
  • [4] Self-assembled metal quantum dots
    Chen, L. J.
    Su, P. Y.
    Liang, J. M.
    Hu, J. C.
    Wu, W. W.
    Cheng, S. L.
    International Journal of Nanoscience, Vol 3, No 6, 2004, 3 (06): : 877 - 889
  • [5] Self-assembled quantum dots as probes for Landau-level spectroscopy
    Russ, M
    Lorke, A
    Reuter, D
    Schafmeister, P
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 22 (1-3): : 506 - 509
  • [6] Stark spectroscopy of Ge/Si(001) self-assembled quantum dots
    Yakimov, A. I.
    Dvurechenskii, A. V.
    Nikiforov, A. I.
    Ulyanov, V. V.
    Milekhin, A. G.
    Schulze, S.
    Zahn, D. R. T.
    INTERNATIONAL JOURNAL OF NANOSCIENCE, VOL 2, NO 6, 2003, 2 (06): : 505 - 510
  • [7] Wave function mapping of self-assembled quantum dots by capacitance spectroscopy
    Wibbelhoff, O
    Meier, C
    Lorke, A
    Schafmeister, P
    Wieck, AD
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 21 (2-4): : 516 - 520
  • [8] Micro-photoluminescence spectroscopy of hierarchically self-assembled quantum dots
    Rastelli, A.
    Kiravittaya, S.
    Wang, L.
    Bauer, C.
    Schmidt, O. G.
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2006, 32 (1-2): : 29 - 32
  • [9] Size control of self-assembled quantum dots
    Johansson, J
    Seifert, W
    JOURNAL OF CRYSTAL GROWTH, 2000, 221 : 566 - 570
  • [10] Coherence and dephasing in self-assembled quantum dots
    Hvam, JM
    Leosson, K
    Birkedal, D
    2003 THIRD IEEE CONFERENCE ON NANOTECHNOLOGY, VOLS ONE AND TWO, PROCEEDINGS, 2003, : 122 - 125
12345