Searched for: author%3A%22Rastelli%2C+A.%22
(1 - 4 of 4)
document
Akopian, N. (author), Perinetti, U. (author), Wang, L. (author), Rastelli, A. (author), Schmidt, O.G. (author), Zwiller, V. (author)
We study single GaAs quantum dots with optical transitions that can be brought into resonance with the widely used D2 transitions of rubidium atoms. We achieve resonance by Zeeman or Stark shifting the quantum dot levels. We discuss an energy stabilization scheme based on the absorption of quantum dot photoluminescence in a rubidium vapor. This...
journal article 2010
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Ding, F. (author), Akopian, N. (author), Li, B. (author), Perinetti, U. (author), Govorov, A. (author), Peeters, F.M. (author), Bof Bufon, C.C. (author), Deneke, C. (author), Chen, Y.H. (author), Rastelli, A. (author), Schmidt, O.G. (author), Zwiller, V. (author)
We report on a magnetophotoluminescence study of single self-assembled semiconductor nanorings which are fabricated by molecular-beam epitaxy combined with AsBr3 in situ etching. Oscillations in the neutral exciton radiative recombination energy and in the emission intensity are observed under an applied magnetic field. Further, we control the...
journal article 2010
document
Ding, F. (author), Singh, R. (author), Plumhof, J.D. (author), Zander, T. (author), K?ápek, V. (author), Chen, Y.H. (author), Benyoucef, M. (author), Zwiller, V. (author), Dörr, K. (author), Bester, G. (author), Rastelli, A. (author), Schmidt, O.G. (author)
We study the effect of an external biaxial stress on the light emission of single InGaAs/GaAs(001) quantum dots placed onto piezoelectric actuators. With increasing compression, the emission blueshifts and the binding energies of the positive trion (X+) and biexciton (XX) relative to the neutral exciton (X) show a monotonic increase. This...
journal article 2010
document
Zhang, J.J. (author), Stoffel, M. (author), Rastelli, A. (author), Schmidt, O.G. (author), Jovanovi?, V. (author), Nanver, L.K. (author), Bauer, G. (author)
The morphological evolution of both pits and SiGe islands on patterned Si(001) substrates is investigated. With increasing Si buffer layer thickness the patterned holes transform into multifaceted pits before evolving into inverted truncated pyramids. SiGe island formation and evolution are studied by systematically varying the Ge coverage and...
journal article 2007
Searched for: author%3A%22Rastelli%2C+A.%22
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