Directing Nuclear Spin Flips in InAs Quantum Dots Using Detuned Optical Pulse Trains

被引：48

作者：

Carter, S. G. ^{[1
]}

Shabaev, A. ^{[2
]}

Economou, Sophia E. ^{[1
]}

Kennedy, T. A. ^{[1
]}

Bracker, A. S. ^{[1
]}

Reinecke, T. L. ^{[1
]}

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

[2] George Mason Univ, Sch Computat Sci, Fairfax, VA 22030 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 16期

关键词：

ELECTRON-SPIN; MANIPULATION;

D O I：

10.1103/PhysRevLett.102.167403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We find that detuning an optical pulse train from electronic transitions in quantum dots controls the direction of nuclear spin flips. The optical pulse train generates electron spins that precess about an applied magnetic field, with a spin component parallel to the field only for detuned pulses. This component leads to asymmetry in the nuclear spin flips, providing a way to stabilize and control the nuclear spin polarization. This effect is observed using two-color, time-resolved Faraday rotation and ellipticity.

引用

收藏

页数：4

相关论文

共 36 条

[1] Quantum-dot spin-state preparation with near-unity fidelity [J].

Atatüre, M ;

Dreiser, J ;

Badolato, A ;

Högele, A ;

Karrai, K ;

Imamoglu, A .

SCIENCE, 2006, 312 (5773) :551-553

[2] Picosecond coherent optical manipulation of a single electron spin in a quantum dot [J].

Berezovsky, J. ;

Mikkelsen, M. H. ;

Stoltz, N. G. ;

Coldren, L. A. ;

Awschalom, D. D. .

SCIENCE, 2008, 320 (5874) :349-352

[3] Optical pumping of the electronic and nuclear spin of single charge-tunable quantum dots [J].

Bracker, AS ;

Stinaff, EA ;

Gammon, D ;

Ware, ME ;

Tischler, JG ;

Shabaev, A ;

Efros, AL ;

Park, D ;

Gershoni, D ;

Korenev, VL ;

Merkulov, IA .

PHYSICAL REVIEW LETTERS, 2005, 94 (04) :1-4

[4] Bistability of the nuclear polarization created through optical pumping in In1-xGaxAs quantum dots [J].

Braun, P. -F. ;

Urbaszek, B. ;

Amand, T. ;

Marie, X. ;

Krebs, O. ;

Eble, B. ;

Lemaitre, A. ;

Voisin, P. .

PHYSICAL REVIEW B, 2006, 74 (24)

[5] Ultrafast below-resonance Raman rotation of electron spins in GaAs quantum wells [J].

Carter, S. G. ;

Chen, Z. ;

Cundiff, S. T. .

PHYSICAL REVIEW B, 2007, 76 (20)

[6] Hyperfine interaction in a quantum dot: Non-Markovian electron spin dynamics [J].

Coish, WA ;

Loss, D .

PHYSICAL REVIEW B, 2004, 70 (19) :1-21

[7] Theory of spin precession monitored by laser pulse [J].

Combescot, M ;

Betbeder-Matibet, O .

SOLID STATE COMMUNICATIONS, 2004, 132 (02) :129-134

[8] Electron Spin Dephasing due to Hyperfine Interactions with a Nuclear Spin Bath [J].

Cywinski, Lukasz ;

Witzel, Wayne M. ;

Das Sarma, S. .

PHYSICAL REVIEW LETTERS, 2009, 102 (05)

[9] Nuclear tuning and detuning of the electron spin resonance in a quantum dot: Theoretical consideration [J].

Danon, Jeroen ;

Nazarov, Yuli V. .

PHYSICAL REVIEW LETTERS, 2008, 100 (05)

[10] Analytical solution of electron spin decoherence through hyperfine interaction in a quantum dot [J].

Deng, Changxue ;

Hu, Xuedong .

PHYSICAL REVIEW B, 2006, 73 (24)

← 1 2 3 4 →