Quantum dot micropillar cavities with SiO2 hard mask microlenses

Matthew Jordan; Petros Androvitsaneas; Rachel N. Clark; Aristotelis Trapalis; Ian Farrer; Wolfgang Langbein; Anthony J. Bennett

doi:10.1117/12.3005342

13 March 2024 Quantum dot micropillar cavities with SiO₂ hard mask microlenses

Matthew Jordan, Petros Androvitsaneas, Rachel N. Clark, Aristotelis Trapalis, Ian Farrer, Wolfgang Langbein, Anthony J. Bennett

Author Affiliations +

Proceedings Volume 12896, Photonic and Phononic Properties of Engineered Nanostructures XIV; 1289608 (2024) https://doi.org/10.1117/12.3005342
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We report finite difference time domain simulations of GaAs-Al_0.95Ga_0.05As micropillars containing single quantum dots with SiO₂ microlenses of differing shapes and heights, finding an approximately linear reduction in the numerical aperture and mode field diameter of the outcoupled emissions via the fundamental mode. This opens the possibility of modifying our previously reported direct-write lithography process to leave an amount of hard mask on top of the pillar, which could modify the light emitted from our single photon sources to be more efficiently coupled into an output single mode fibre.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Matthew Jordan, Petros Androvitsaneas, Rachel N. Clark, Aristotelis Trapalis, Ian Farrer, Wolfgang Langbein, and Anthony J. Bennett "Quantum dot micropillar cavities with SiO₂ hard mask microlenses", Proc. SPIE 12896, Photonic and Phononic Properties of Engineered Nanostructures XIV, 1289608 (13 March 2024); https://doi.org/10.1117/12.3005342

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