Polarization-Dependent Interference of Coherent Scattering from Orthogonal Dipole Moments of a Resonantly Excited Quantum Dot.
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.
Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, USA.
Disheng
D
Chen
Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, USA.
Gary R
GR
Lander
Joint Quantum Institute, National Institute of Standards and Technology, and University of Maryland, Gaithersburg, Maryland 20889, USA.
Glenn S
GS
Solomon
Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, USA.
Edward B
EB
Flagg