Electromagnetically induced transparency with an ensemble of donor-bound electron spins in a semiconductor

被引：14

作者：

Sladkov, Maksym ^{[1
]}

Chaubal, A. U. ^{[1
]}

Bakker, M. P. ^{[1
]}

Onur, A. R. ^{[1
]}

Reuter, D. ^{[2
]}

Wieck, A. D. ^{[2
]}

van der Wal, C. H. ^{[1
]}

机构：

[1] Univ Groningen, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands

[2] Ruhr Univ Bochum, D-44780 Bochum, Germany

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 12期

关键词：

OPTICAL PULSES; GAAS; SPECTROSCOPY; LOCKING;

D O I：

10.1103/PhysRevB.82.121308

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present measurements of electromagnetically induced transparency with an ensemble of donor-bound electrons in low-doped n-GaAs. We used optical transitions from the Zeeman-split electron-spin states to a bound trion state in samples with optical densities of 0.3 and 1.0. The electron-spin dephasing time T*(2) approximate to 2 ns was limited by hyperfine coupling to fluctuating nuclear spins. We also observe signatures of dynamical nuclear polarization but find these effects to be much weaker than in experiments that use electron-spin resonance and related experiments with quantum dots.

引用

页数：4

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