We report on an experimental implementation of an interface between quantum dots (QD) and parametric downconversion (PDC). We present a PDC source compatible with QD emission and our efforts to demonstrate such compatibility.
Resonance fluorescence of a single InGaAs/GaAs quantum dot enables us to show direct evidence of population up-conversion to an excited state in a quantum dot, which we attribute to single-acoustic-phonon processes at low temperature.
We demonstrate strongly driven resonance fluorescence from a single InGaAs quantum dot in a planar microcavity by measuring the coherent oscillations in the second-order correlation function, g(2)(t), of the photoluminescence.
Orthogonal optical detection and excitation of quantum dots embedded in a microcavity allows, for the first time, for background-free measurement of their resonance fluorescence. The spectra and photon statistics of single dots were obtained.
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.