Related Experiment Video
Updated: May 14, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
Published on: October 13, 2017
Field-field and photon-photon correlations of light scattered by two remote two-level InAs quantum dots on the same
K Konthasinghe1, M Peiris, Y Yu
1Department of Physics, University of South Florida, Tampa, Florida 33620, USA.
Abstract:
We report the measurement of field-field and photon-photon correlations of light scattered by two InAs quantum dots separated by ≈40 μm. Near 4 K a large fraction of photons can be scattered coherently by each quantum dot leading to one-photon interference at a beam splitter (visibility ≈20%). Simultaneously, two-photon interference is also observed (visibility ≈40%) due to the indistinguishability of photons scattered by the two different quantum emitters. We show how spectral diffusion accounts for the reduction in interference visibility through variations in photon flux.
Related Concept Videos
Fluorescence and Phosphorescence: Instrumentation
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...
Photoluminescence: Applications
Super-resolution Fluorescence Microscopy

