Quantum photonics in triangular-cross-section nanodevices in silicon carbide

• URL: http://arxiv.org/abs/2012.02350v3
• Date: Wed, 19 Jan 2022 07:10:10 GMT
• Title: Quantum photonics in triangular-cross-section nanodevices in silicon carbide
• Authors: Sridhar Majety, Victoria A. Norman, Liang Li, Miranda Bell, Pranta Saha, Marina Radulaski
• Abstract summary: Angle-etched nanodevices are emerging as a solution to photonic integration in bulk substrates. We analyze optimal color center positioning within the modes of these devices. We observe polariton and subradiant state formation in the cavity-protected regime of cavity quantum electrodynamics.
• Score: 4.26174272406905
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: Silicon carbide is evolving as a prominent solid-state platform for the realization of quantum information processing hardware. Angle-etched nanodevices are emerging as a solution to photonic integration in bulk substrates where color centers are best defined. We model triangular cross-section waveguides and photonic crystal cavities using Finite-Difference Time-Domain and Finite-Difference Eigensolver approaches. We analyze optimal color center positioning within the modes of these devices and provide estimates on achievable Purcell enhancement in nanocavities with applications in quantum communications. Using open quantum system modeling, we explore emitter-cavity interactions of multiple non-identical color centers coupled to both a single cavity and a photonic crystal molecule in SiC. We observe polariton and subradiant state formation in the cavity-protected regime of cavity quantum electrodynamics applicable in quantum simulation.

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