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Proceedings Paper

Robust quantum dot exciton preparation via adiabatic passage with frequency-swept laser pulses
Author(s): B. Urbaszek; C.-M. Simon; T. Belhadj; B. Chatel; T. Amand; P. Dalgarno; O. Krebs; R. J. Warburton; A. Lemaitre; X. Marie; P. Renucci
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Paper Abstract

The energy states in semiconductor quantum dots are discrete as in atoms, and quantum states can be coherently controlled with resonant laser pulses. Long coherence times allow the observation of Rabi-flopping of a single dipole transition in a solid state device, for which occupancy of the upper state depends sensitively on the dipole moment and the excitation laser power. We report on the robust preparation of a quantum state using an optical technique that exploits rapid adiabatic passage from the ground to an excited state through excitation with laser pulses whose frequency is swept through the resonance.

Paper Details

Date Published: 21 February 2011
PDF: 5 pages
Proc. SPIE 7937, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV, 79371C (21 February 2011); doi: 10.1117/12.877291
Show Author Affiliations
B. Urbaszek, Lab. de Physique et Chimie des Nano-Objets, CNRS, Univ. de Toulouse (France)
C.-M. Simon, Lab. de Physique et Chimie des Nano-Objets, CNRS, Univ. de Toulouse (France)
Lab. Collisions Agregats Reactivite, CNRS, Univ. Toulouse (France)
T. Belhadj, Lab. de Physique et Chimie des Nano-Objets, CNRS, Univ. de Toulouse (France)
B. Chatel, Lab. Collisions Agregats Reactivite, CNRS, Univ. Toulouse (France)
T. Amand, Lab. de Physique et Chimie des Nano-Objets, CNRS, Univ. de Toulouse (France)
P. Dalgarno, Lab. de Physique et Chimie des Nano-Objets, CNRS, Univ. de Toulouse (France)
O. Krebs, Lab. de Photonique et Nanostructures (France)
R. J. Warburton, Heriot-Watt Univ. (United Kingdom)
Univ. of Basel (Switzerland)
A. Lemaitre, Lab. de Photonique et Nanostructures (France)
X. Marie, Lab. de Physique et Chimie des Nano-Objets, CNRS, Univ. de Toulouse (France)
P. Renucci, Lab. de Physique et Chimie des Nano-Objets, CNRS, Univ. de Toulouse (France)


Published in SPIE Proceedings Vol. 7937:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV
Kong-Thon Tsen; Jin-Joo Song; Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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