Single Charged Quantum Dot in a Strong Optical Field: Absorption, Gain, and the ac-Stark Effect

2008/03/05 by Xiaodong Xu, Bo Sun, Erik D. Kim +7 · 3 citations
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevlett.101.227401

arxiv created 2008/03/05 · openalex publication_date 2008/11/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We investigate a singly charged quantum dot under a strong optical driving field by probing the system with a weak optical field. We observe all critical features predicted by Mollow for a strongly driven two-level atomic system in this solid state nanostructure, such as absorption, the ac-Stark effect, and optical gain. Our results demonstrate that even at high optical field strengths the electron in a single quantum dot with its dressed ground state and trion state behaves as a well-isolated two-level quantum system.

Citations

• Efficient coupling of photons to a single molecule and the observation of its resonance fluorescence
• Coherent Manipulation of Coupled Electron Spins in Semiconductor Quantum Dots
• Stimulated and Spontaneous Optical Generation of Electron Spin Coherence in Charged GaAs Quantum Dots
• Effects of Configuration Interaction on Intensities and Phase Shifts

Cited by

• Multi-mode Floquet NEGF method for driven quantum transport
• Bias-modulated dynamics of a strongly driven two-level system
• Spin dynamics of a Mn atom in a semiconductor quantum dot under resonant optical excitation

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