Microresonator-enhanced quantum dot single-photon emission in GaAs-on-insulator platform

Yueguang Zhou, Yuhui Yang, Imad Limame, Priyabrata Mudi, Marcel Hohn, Claudia Piccinini, Battulga Munkhbat, Yann Genuist, Jean Michel Gérard, Julien Claudon, Kresten Yvind, Niels Gregersen, Stephan Reitzenstein, Minhao Pu*

*Corresponding author for this work

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Abstract

Single-photon emitters play a crucial role in integrated photonic quantum systems across various material platforms. In this study, we present a cavity-enhanced quantum dot single-photon source in a high-index contrast material platform (GaAs-on-insulator). A quantum dot is embedded in a microring resonator with a quality factor of approximately 9000, where the cavity-induced light enhancement results in a spontaneous emission acceleration factor of around 2.6, and we achieve a g(2)(0) as low as 0.03 ± 0.02 and post-selected two-photon interference visibility of 51.7%±3.2% for the single-photon source. This demonstration shows the potential of the GaAs-on-Insulator platform for scalable on-chip quantum information processing.

Original languageEnglish
Article number045401
JournalMaterials for Quantum Technology
Volume4
Issue number4
Number of pages9
ISSN2633-4356
DOIs
Publication statusPublished - 1 Dec 2024

Keywords

  • Microresonator
  • Purcell effect
  • Quantum dot
  • Single-photon source

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