Towards strong-coupling regime in site-controlled InGaAs quantum dots integrated with nanocavities

Wei Liu; Jiahui Huang; Xiang Cheng; Alessio Miranda; Benjamin Dwir; Alok Rudra; Eli Kapon; Chee Wei Wong

doi:10.1117/12.2592348

5 March 2021 Towards strong-coupling regime in site-controlled InGaAs quantum dots integrated with nanocavities

Wei Liu, Jiahui Huang, Xiang Cheng, Alessio Miranda, Benjamin Dwir, Alok Rudra, Eli Kapon, Chee Wei Wong

Proceedings Volume 11694, Photonic and Phononic Properties of Engineered Nanostructures XI; 116941R (2021) https://doi.org/10.1117/12.2592348
Event: SPIE OPTO, 2021, Online Only

Abstract

Precise positioning of single quantum dots (QDs) in photonics crystal (PhC) cavities with nanometer-scale accuracy offers great promise for on-chip integrated quantum photonic circuit. In such coupled QD-cavity system, the decoherence fundamentally affects the coherent control for quantum communication and information processing. However, accessing to the strong-coupling regime and the impact of pure dephasing in such system have been rarely reported yet. Here, relying on our unique site-controlled pyramidal InGaAs/GaAs QDs – high-Q-PhC cavities platform, we investigate the cavity quantum electrodynamics towards strong-coupling regime mediated by pure dephasing. We demonstrate the anti-crossing and mutual linewidth narrowing of the single excitonic emission strongly coupled to cavity mode near resonance. We further present the signatures of Rabi-like oscillation and quantum beating between upper and lower branch of polariton.

Conference Presentation

Citation Download Citation

Wei Liu, Jiahui Huang, Xiang Cheng, Alessio Miranda, Benjamin Dwir, Alok Rudra, Eli Kapon, and Chee Wei Wong "Towards strong-coupling regime in site-controlled InGaAs quantum dots integrated with nanocavities", Proc. SPIE 11694, Photonic and Phononic Properties of Engineered Nanostructures XI, 116941R (5 March 2021); https://doi.org/10.1117/12.2592348

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