Effective purcell suppression for high-yield manufacturing of ultra-efficient broadband micropillars

Dlaka, David, Bryce, Thomas, Ankaine, Yolan, Mallord, James, Androvitsaneas, Petros, Young, Andrew, Harbord, Edmund, Bennett, Anthony ORCID: https://orcid.org/0000-0002-5386-3710 and Oulton, Ruth 2026. Effective purcell suppression for high-yield manufacturing of ultra-efficient broadband micropillars. Presented at: Photonic and Phononic Properties of Engineered Nanostructures XVI, San Francisco, CA, U.S.A, 17-23 January 2026. Published in: Adibi, Ali and Brongersma, Mark L. eds. Proceedings Photonic and Phononic Properties of Engineered Nanostructures XVI. , vol.13909 SPIE, p. 60. 10.1117/12.3080561

Full text not available from this repository.

Abstract

Quantum dot micropillars have the potential for delivering simultaneous ultra-high efficiency, indistinguishability, and purity while also operating in a broadband low-Q cavity regime. We present results from finite-difference time-domain simulations, theoretical models, and measurements of cavity photoluminescence to demonstrate the effect of Purcell suppression of undesirable leaky decay in well-designed micropillars. We demonstrate the possibility of increasing not only the on-resonance device efficiency, but also to increase the device bandwidth by 3.3-6.5 times and increase the yield of in-cavity quantum dots by 3-50 times compared to high-Q narrowband devices.

Item Type:	Conference or Workshop Item - published (Paper)
Date Type:	Publication
Status:	Published
Schools:	Schools > Engineering
Publisher:	SPIE
Last Modified:	08 Jun 2026 10:46
URI:	https://orca.cardiff.ac.uk/id/eprint/187462

Actions (repository staff only)

Edit Item