Coherent writing and reading of quantum dots excitons' state by resonant two colors polarized laser pulses

We use a resonant circularly polarized picosecond laser pulse to write a coherent superposition of exciton's states. We use a second, delayed circularly polarized pulse, tuned into the biexciton resonance to read the exciton's state.

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Bibliographic Details
Main Authors: Khatsevich, S, Kodriano, Y, Tradonsky, C, Benny, Y, Galushko, D, Petroff, P M, Gershoni, D
Format: Conference Proceeding
Language:English
Subjects:
(270.5585) Quantum information and processing
(320.7150) Ultrafast spectroscopy
Delay
Excitons
Laser theory
Laser tuning
Optical polarization
Optical pulses
Pulse measurements
Quantum dot lasers
Resonance
Writing
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Description
Summary:We use a resonant circularly polarized picosecond laser pulse to write a coherent superposition of exciton's states. We use a second, delayed circularly polarized pulse, tuned into the biexciton resonance to read the exciton's state.
DOI:10.1364/QELS.2010.QFD7