共振激发量子点正交偶极矩相干散射的偏振相关干涉
Polarization-Dependent Interference of Coherent Scattering from Orthogonal Dipole Moments of a Resonantly Excited Quantum Dot.
作者信息
Chen Disheng, Lander Gary R, Solomon Glenn S, Flagg Edward B
机构信息
Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, USA.
Joint Quantum Institute, National Institute of Standards and Technology, and University of Maryland, Gaithersburg, Maryland 20889, USA.
出版信息
Phys Rev Lett. 2017 Jan 20;118(3):037401. doi: 10.1103/PhysRevLett.118.037401.
Resonant photoluminescence excitation (RPLE) spectra of a neutral InGaAs quantum dot show unconventional line shapes that depend on the detection polarization. We characterize this phenomenon by performing polarization-dependent RPLE measurements and simulating the measured spectra with a three-level quantum model. The spectra are explained by interference between fields coherently scattered from the two fine structure split exciton states, and the measurements enable extraction of the steady-state coherence between the two exciton states.
中性铟镓砷量子点的共振光致发光激发（RPLE）光谱呈现出依赖于探测偏振的非常规线形。我们通过进行偏振相关的RPLE测量并用三能级量子模型模拟测量光谱来表征这一现象。光谱由从两个精细结构分裂激子态相干散射的场之间的干涉来解释，并且这些测量能够提取两个激子态之间的稳态相干性。
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