Abstract
We have studied numerically the time-dependent photon-assisted tunneling (TD-PAT)process for electrons confined in quantum dots (QDs) by employing the finite differencemethod under the scheme of the TD-density functional theory (DFT). We havefound the quasi-dark state (quasi-DS), where the injected electron remains inthe QD. By varying the barrier thickness, we have calculated the TD profile ofthe electron density in a QD, and found the optimal geometry of the lozengeQD. We have also discussed how the charged QD modulates the PAT process.
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