June 30, 2025 to July 4, 2025
Europe/Vienna timezone

Enabling independent electrical control of two quantum emitters via introducing mid cavity structural division in photonic crystal microcavities .

Jul 1, 2025, 3:15 PM
1h 45m
Poster only Quantum technologies, quantum optics, cavity QED, quantum information Poster Session 2

Speaker

Monilka Singh (University of Sheffield)

Description

The study investigates the execution of independent electrical control over two quantum dot emitters within the single photonic crystal microcavities along with coupled cavities as photonic molecule. We accomplish spatial separation of two quantum dots by splitting the cavity by inducing ion beam implantation, which allows for independent tuning without cross-interference. For photonic molecules [1], we investigate the independent tuning in each cavity separately.
Using photoluminescence and transmission spectroscopy, we investigate the isolated coupling of quantum dots to cavity mode, exhibiting improved light-matter interactions [2] in both case. This unique approach provides a scalable solution for multi-emitter collective coupling in quantum photonic systems, opening the door to deterministic photon emitters with independent control [3] for quantum information processing.

References :
[1] A. R. A. Chalcraft, S. Lam, B. D. Jones, D. Szymanski, R. Oulton, A. C. T. Thijssen, M. S. Skolnick, D. M. Whittaker, T. F. Krauss, and A. M. Fox, "Mode structure of coupled L3 photonic crystal cavities," Opt. Express 19, 5670-5675 (2011)
[2] Atlasov, Kirill A., et al. "Large mode splitting and lasing in optimally coupled photonic-crystal microcavities." Optics express 19.3 (2011): 2619-2625.
[3] Lukin, D. M., Guidry, M. A., Yang, J., Ghezellou, M., Deb Mishra, S., Abe, H., . . . Vuˇckovi ́c, J. (2023). Two-Emitter Multimode Cavity Quantum Electrodynamics in Thin-Film Silicon Carbide Photonics. Phys. Rev. X, 13, 011005.

Author

Monilka Singh (University of Sheffield)

Co-authors

Dominic Hallet (University of Sheffield) Luke Wilson (University of Sheffield) Nicholas J. Martin (University of Sheffield)

Presentation materials

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