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Updated: May 15, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
Published on: October 13, 2017
Giant and broad-band absorption enhancement in colloidal quantum dot monolayers through dipolar coupling
Pieter Geiregat1, Yolanda Justo, Sofie Abe
1Physics and Chemistry of Nanostructures, Ghent University, B-9000 Ghent, Belgium.
Abstract:
The absorption cross section of colloidal quantum dots in close-packed monolayers shows a 4 (CdSe) to 5-fold (PbS) enhancement compared to quantum dots in a dilute dispersion. Quantitative agreement is demonstrated between the value and the size dependence of the enhancement and theoretical model predictions based on dipolar coupling between neighboring quantum dots. This collective optical behavior offers a new degree of freedom in the custom design of optical properties for electro-optical devices.
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