Dark excitons in a quantum-dot-cavity system under a tilted magnetic field

被引：13

作者：

Jimenez-Orjuela, C. A. ^{[1
]}

Vinck-Posada, H. ^{[1
]}

Villas-Boas, Jose M. ^{[2
]}

机构：

[1] Univ Nacl Colombia, Dept Fis, Bogota 111321, Colombia

[2] Univ Fed Uberlandia, Inst Fis, BR-38400902 Uberlandia, MG, Brazil

来源：

PHYSICAL REVIEW B | 2017年 / 96卷 / 12期

关键词：

SPONTANEOUS EMISSION;

D O I：

10.1103/PhysRevB.96.125303

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on dark-exciton dynamics in a single quantum dot embedded in a bimodal cavity under the effect of an external magnetic field and laser excitation. By means of a fast laser pulse in resonance with the cavity modes and a varying intensity magnetic field in different tilted angles, we are able to identify the optimal condition where dark-exciton states can be efficiently populated. Using the set of parameters, we focus on the steady regime for the system that is continuously excited. Our results show that the presence of dark-exciton states strongly modifies the cavity modes' occupation and, for a specific set of parameters, only dark states are present in the cavity.

引用

页数：5

共 25 条

[1] Spectroscopic study of dark excitons in InxGa1-xAs self-assembled quantum dots by a magnetic-field-induced symmetry breaking [J].

Bayer, M ;

Stern, O ;

Kuther, A ;

Forchel, A .

PHYSICAL REVIEW B, 2000, 61 (11) :7273-7276

[2] Fine structure of neutral and charged excitons in self-assembled In(Ga)As/(Al)GaAs quantum dots -: art. no. 195315 [J].

Bayer, M ;

Ortner, G ;

Stern, O ;

Kuther, A ;

Gorbunov, AA ;

Forchel, A ;

Hawrylak, P ;

Fafard, S ;

Hinzer, K ;

Reinecke, TL ;

Walck, SN ;

Reithmaier, JP ;

Klopf, F ;

Schäfer, F .

PHYSICAL REVIEW B, 2002, 65 (19) :1953151-19531523

[3] Inhibition and enhancement of the spontaneous emission of quantum dots in structured microresonators [J].

Bayer, M ;

Reinecke, TL ;

Weidner, F ;

Larionov, A ;

McDonald, A ;

Forchel, A .

PHYSICAL REVIEW LETTERS, 2001, 86 (14) :3168-3171

[4] Complete Coherent Control of a Quantum Dot Strongly Coupled to a Nanocavity [J].

Dory, Constantin ;

Fischer, Kevin A. ;

Mueller, Kai ;

Lagoudakis, Konstantinos G. ;

Sarmiento, Tomas ;

Rundquist, Armand ;

Zhang, Jingyuan L. ;

Kelaita, Yousif ;

Vuckovic, Jelena .

SCIENTIFIC REPORTS, 2016, 6

[5] A quantum dot single-photon source with on-the-fly all-optical polarization control and timed emission [J].

Heinze, Dirk ;

Breddermann, Dominik ;

Zrenner, Artur ;

Schumacher, Stefan .

NATURE COMMUNICATIONS, 2015, 6

[6] Photoluminescence of a microcavity quantum dot system in the quantum strong-coupling regime [J].

Ishida, Natsuko ;

Byrnes, Tim ;

Nori, Franco ;

Yamamoto, Yoshihisa .

SCIENTIFIC REPORTS, 2013, 3

[7] Magnetic field tuning of a quantum dot strongly coupled to a photonic crystal cavity [J].

Kim, Hyochul ;

Shen, Thomas C. ;

Sridharan, Deepak ;

Solomon, Glenn S. ;

Waks, Edo .

APPLIED PHYSICS LETTERS, 2011, 98 (09)

[8] Dephasing of Exciton Polaritons in Photoexcited InGaAs Quantum Dots in GaAs Nanocavities [J].

Laucht, A. ;

Hauke, N. ;

Villas-Boas, J. M. ;

Hofbauer, F. ;

Boehm, G. ;

Kaniber, M. ;

Finley, J. J. .

PHYSICAL REVIEW LETTERS, 2009, 103 (08)

[9] Strong coupling of quantum dots in microcavities [J].

Laussy, Fabrice P. ;

del Valle, Elena ;

Tejedor, Carlos .

PHYSICAL REVIEW LETTERS, 2008, 101 (08)

[10] Phonon-assisted dark exciton preparation in a quantum dot [J].

Lueker, S. ;

Kuhn, T. ;

Reiter, D. E. .

PHYSICAL REVIEW B, 2017, 95 (19)

← 1 2 3 →