PROGRAM

Delft, Gerhard Abstreiter "Optical control of spins in self-assembled InGaAs quantum dots"

Date:

Time:

16:00

Location:

TNW building, Room E, Delft

 

Location: TNW building, Room E

Time: 16:00 hrs  

Walter Schottky Institut and Physik Department Institute for Advanced Study TU München, 85748 Garching , Germany abstreiter@wsi.tum.de

I will discuss electro/optical measurements of spin lifetimes of electrons [1] and holes [2] as well as the control and readout of a single spin in self-assembled InGaAs quantum dots embedded in GaAs based diode structures [3, 4, 5]. In addition the electric field tuning of the exciton g-factor [6, 7] and the asymmetric optical nuclear spin pumping in similar quantum dots [8] will be presented.

References

1       M. Kroutvar et al.,  Nature 432, 81 (2004)

2       D. Heiss et al., Phys. Rev. B76, 24136 (2007)

3        D. Heiss et al., Phys. Rev. B77, 235442 (2008)

4       D. Heiss et al., Appl. Phys. Letters 94, 072108 (2009)

5       D. Heiss et al., Phys. Rev. B82, 245316 (2010)

6       F. Klotz et al., Appl. Phys. Letters 96, 053113 (2010)

7       V. Jovanov et al., Phys. Rev. B83, 161303 (2011)

8       F. Klotz et al., Phys. Rev. B82, 121307 (2010)

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