Fabrication and tuning of plasmonic optical nanoantennas around droplet epitaxy quantum dots by cathodoluminescence

Abstract

We use cathodoluminescence to locate droplet epitaxy quantum dots with a precision $\lesssim$ nm before fabricating nanoantennas in their vicinity by electron-beam lithography. Cathodoluminescence is further used to evidence the effect of the antennas as a function of their length on the light emitted by the dot. Experimental results are in good agreement with numerical simulations of the structures.

References in corpus (1)

• The Effects of Post-Thermal Annealing on the Emission Spectra of GaAs/AlGaAs Quantum Dots grown by Droplet Epitaxy

Cited by in corpus (5)

• Deterministically Fabricated Solid-State Quantum-Light Sources
• Enhanced photon-extraction efficiency from InGaAs/GaAs quantum dots in deterministic photonic structures at 1.3 μm fabricated by in-situ electron-beam lithography
• Wave-mixing origin and optimization in single and compact aluminum nanoantennas
• GaAs droplet quantum dots with nanometer-thin capping layer for plasmonic applications
• Deterministic radiative coupling between plasmonic nanoantennas and semiconducting nanowire quantum dots