TY - JOUR
T1 - Theoretical study of the time-dependent phenomenon of photon-assisted tunneling through a charged quantum dot
AU - Muraguchi, Masakazu
AU - Shiraishi, Kenji
AU - Okunishi, Takuma
AU - Takeda, Kyozaburo
PY - 2009/4/9
Y1 - 2009/4/9
N2 - We have studied numerically the time-dependent photon-assisted tunneling (TD-PAT) process for electrons confined in quantum dots (QDs) by employing the finite difference method under the scheme of the TD-density functional theory (DFT). We have found the quasi-dark state (quasi-DS), where the injected electron remains in the QD. By varying the barrier thickness, we have calculated the TD profile of the electron density in a QD, and found the optimal geometry of the lozenge QD. We have also discussed how the charged QD modulates the PAT process.
AB - We have studied numerically the time-dependent photon-assisted tunneling (TD-PAT) process for electrons confined in quantum dots (QDs) by employing the finite difference method under the scheme of the TD-density functional theory (DFT). We have found the quasi-dark state (quasi-DS), where the injected electron remains in the QD. By varying the barrier thickness, we have calculated the TD profile of the electron density in a QD, and found the optimal geometry of the lozenge QD. We have also discussed how the charged QD modulates the PAT process.
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U2 - 10.1088/0953-8984/21/6/064230
DO - 10.1088/0953-8984/21/6/064230
M3 - Article
C2 - 21715932
AN - SCOPUS:63749124521
SN - 0953-8984
VL - 21
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 6
M1 - 064230
ER -