Near-field optical spectroscopy of localized excitons in strained CdSe quantum dots

被引：157

作者：

Flack, F ^{[1
]}

Samarth, N ^{[1
]}

Nikitin, V ^{[1
]}

Crowell, PA ^{[1
]}

Shi, J ^{[1
]}

Levy, J ^{[1
]}

Awschalom, DD ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.54.R17312

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Control of the growth dynamics during the epitaxy of coherently strained ZnSe/CdSe quantum structures results in a varied interfacial texture that broadly defines two qualitatively different regimes for exciton localization. An island growth mode produces quantum dot regions in which the lateral confinement of excitons is directly revealed through the observation of resolution-limited (full width at half maximum of <0.8 meV) emission peaks in near-field photoluminescence spectra. By contrast, layer-by-layer growth produces potential fluctuations at length scales small compared to the exciton diameter, so that the localization of excitons is driven by a random interfacial potential with a smooth density of states.

引用

页码：17312 / 17315

页数：4

共 50 条

[31] Low-temperature near-field spectroscopy of CdTe quantum dots
Brun, M
Huant, S
Woehl, JC
Motte, JF
Marshal, L
Mariette, H
JOURNAL OF MICROSCOPY-OXFORD, 2001, 202 : 202 - 208
[32] Mechanical interaction in near-field spectroscopy of single semiconductor quantum dots
Mintairov, AM
Blagnov, PA
Kovalenkov, OV
Li, C
Merz, JL
Oktyabrsky, S
Tokranov, V
Vlasov, AS
Vinokurov, DA
COMPOUND SEMICONDUCTORS 2002, 2003, 174 : 137 - 140
[33] Optical near-field spectroscopy
Wegener, M
SPECTROSCOPY OF SYSTEMS WITH SPATIALLY CONFINED STRUCTURES, 2003, 90 : 119 - 164
[34] Spin spectroscopy of dark excitons in CdSe quantum dots to 60 T
Johnston-Halperin, E
Awschalom, DD
Crooker, SA
Efros, AL
Rosen, M
Peng, X
Alivisatos, AP
PHYSICAL REVIEW B, 2001, 63 (20):
[35] Near field optical spectroscopy of GaN/AIN quantum dots
Neogi, A
Gorman, BP
Morkoç, H
Kawazoe, T
Ohtsu, M
Kuball, M
GAN, AIN, INN AND THEIR ALLOYS, 2005, 831 : 317 - 322
[36] Near-field scanning optical spectroscopy of an InGaN quantum well
Crowell, PA
Young, DK
Keller, S
Hu, EL
Awschalom, DD
APPLIED PHYSICS LETTERS, 1998, 72 (08) : 927 - 929
[37] Observation of the dark states of near-field coupled InAs quantum dots using optical near-field microscopy
Kawazoe, Tadashi
Nishibayashi, Kazuhiro
Akahane, Kouichi
Yamamoto, Naokatsu
Ohtsu, Motoichi
2007 CONFERENCE ON LASERS & ELECTRO-OPTICS/QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2007), VOLS 1-5, 2007, : 2540 - +
[38] Near-field optical spectroscopy of single GaAs quantum wires
Richter, A
Suptitz, M
Lienau, C
Elsaesser, T
Ramsteiner, M
Notzel, R
Ploog, KH
SURFACE AND INTERFACE ANALYSIS, 1997, 25 (7-8) : 583 - 592
[39] Near-field optical control of nonlinear properties of single quantum dots
Saiki, T
Nishi, K
NEAR-FIELD OPTICS: PHYSICS, DEVICES, AND INFORMATION PROCESSING, 1999, 3791 : 114 - 123
[40] Comment on "Coherent nonlinear optical response of single quantum dots studied by ultrafast near-field spectroscopy"
Joffre, M
PHYSICAL REVIEW LETTERS, 2003, 90 (13)

← 1 2 3 4 5 →