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Title: Dynamical coherent control of photocurrent in bulk GaAs at room temperature
Authors: Tahara, Hirokazu  kyouindb  KAKEN_id  orcid (unconfirmed)
Kanemitsu, Yoshihiko  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 金光, 義彦
Issue Date: 22-Dec-2014
Publisher: American Physical Society
Journal title: Physical Review B
Volume: 90
Issue: 24
Thesis number: 245203
Abstract: We report coherently controlled photocurrent at room temperature in subpicosecond dynamics. The photocurrent intensity shows a periodic change depending on the time interval between the phase-locked pulses. We identify the carrier generation due to shallow acceptors in bulk GaAs by measuring the photocurrent beat period. The non-instantaneous photocurrent beat expresses the ultrafast coherent dynamics, including the dephasing process of the photogenerated carriers. We also demonstrate photocurrent direction control through manipulation of the localized states.
Rights: ©2014 American Physical Society
DOI(Published Version): 10.1103/PhysRevB.90.245203
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