TY - JOUR
T1 - Fast electro-optics of a single self-assembled quantum dot in a charge-tunable device
AU - Prechtel, Jonathan H.
AU - Dalgarno, Paul A.
AU - Hadfield, Robert H.
AU - McFarlane, Jamie
AU - Badolato, Antonio
AU - Petroff, Pierre M.
AU - Warburton, Richard J.
PY - 2012/2/15
Y1 - 2012/2/15
N2 - The response of a single InGaAs quantum dot, embedded in a miniaturized charge-tunable device, to an applied GHz bandwidth electrical pulse is investigated via its optical response. Quantum-dot response times of 1.0 +/- 0.1 ns are characterized via several different measurement techniques, demonstrating GHz-bandwidth electrical control. Furthermore, a novel optical detection technique based on resonant electron-hole pair generation in the hybridization region is used to map fully the voltage pulse experienced by the quantum dot, showing, in this case, a simple exponential rise. (C) 2012 American Institute of Physics. [doi:10.1063/1.3687375]
AB - The response of a single InGaAs quantum dot, embedded in a miniaturized charge-tunable device, to an applied GHz bandwidth electrical pulse is investigated via its optical response. Quantum-dot response times of 1.0 +/- 0.1 ns are characterized via several different measurement techniques, demonstrating GHz-bandwidth electrical control. Furthermore, a novel optical detection technique based on resonant electron-hole pair generation in the hybridization region is used to map fully the voltage pulse experienced by the quantum dot, showing, in this case, a simple exponential rise. (C) 2012 American Institute of Physics. [doi:10.1063/1.3687375]
UR - https://www.scopus.com/pages/publications/84857832728
U2 - 10.1063/1.3687375
DO - 10.1063/1.3687375
M3 - Article
SN - 0021-8979
VL - 111
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 4
M1 - 043112
ER -