Advanced optical manipulation of carrier spins in (In,Ga)As quantum dots

S. Varwig, E. Evers, A. Greilich, D.R. Yakovlev, D. Reuter, A.D. Wieck, T. Meier, A. Zrenner, M. Bayer, Applied Physics B 122 (2016).

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Journal Article | Published | English
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Abstract
Spins in semiconductor quantum dots have been considered as prospective quantum bit excitations. Their coupling to the crystal environment manifests itself in a limitation of the spin coherence times to the microsecond range, both for electron and hole spins. This rather short-lived coherence compared to atomic states asks for manipulations on timescales as short as possible. Due to the huge dipole moment for transitions between the valence and conduction band, pulsed laser systems offer the possibility to perform manipulations within picoseconds or even faster. Here, we report on results that show the potential of optical spin manipulations with currently available pulsed laser systems. Using picosecond laser pulses, we demonstrate optically induced spin rotations of electron and hole spins. We further realize the optical decoupling of the hole spins from the nuclear surrounding at the nanosecond timescales and demonstrate an all-optical spin tomography for interacting electron spin sub-ensembles.
Publishing Year
Journal Title
Applied Physics B
Volume
122
Issue
1
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Varwig S, Evers E, Greilich A, et al. Advanced optical manipulation of carrier spins in (In,Ga)As quantum dots. Applied Physics B. 2016;122(1). doi:10.1007/s00340-015-6274-y
Varwig, S., Evers, E., Greilich, A., Yakovlev, D. R., Reuter, D., Wieck, A. D., … Bayer, M. (2016). Advanced optical manipulation of carrier spins in (In,Ga)As quantum dots. Applied Physics B, 122(1). https://doi.org/10.1007/s00340-015-6274-y
@article{Varwig_Evers_Greilich_Yakovlev_Reuter_Wieck_Meier_Zrenner_Bayer_2016, title={Advanced optical manipulation of carrier spins in (In,Ga)As quantum dots}, volume={122}, DOI={10.1007/s00340-015-6274-y}, number={1}, journal={Applied Physics B}, publisher={Springer Nature}, author={Varwig, S. and Evers, E. and Greilich, A. and Yakovlev, D. R. and Reuter, Dirk and Wieck, A. D. and Meier, Torsten and Zrenner, Artur and Bayer, M.}, year={2016} }
Varwig, S., E. Evers, A. Greilich, D. R. Yakovlev, Dirk Reuter, A. D. Wieck, Torsten Meier, Artur Zrenner, and M. Bayer. “Advanced Optical Manipulation of Carrier Spins in (In,Ga)As Quantum Dots.” Applied Physics B 122, no. 1 (2016). https://doi.org/10.1007/s00340-015-6274-y.
S. Varwig et al., “Advanced optical manipulation of carrier spins in (In,Ga)As quantum dots,” Applied Physics B, vol. 122, no. 1, 2016.
Varwig, S., et al. “Advanced Optical Manipulation of Carrier Spins in (In,Ga)As Quantum Dots.” Applied Physics B, vol. 122, no. 1, Springer Nature, 2016, doi:10.1007/s00340-015-6274-y.

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