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Open Quantum Systems Decoherence Photonic Quantum Computing

Dinosaur Photonic Crystal Cavity Interfaces for Color Center Coupling to Triangular Nanostructures

arXiv

Authors: Julian M. Bopp, Lucca Valerius, Tim Schröder

Year

2025

Paper ID

17864

Status

Preprint

Abstract Read

~2 min

Abstract Words

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Abstract

Waveguide-coupled photonic crystal cavities with a triangular cross section fabricated by angled etching are suitable to interface embedded color centers with flying photonic qubits in quantum information applications. Moreover, their fabrication requires fewer processing steps compared to nanostructures produced by quasi-isotropic undercutting. As an alternative to established hole-based photonic crystal cavities, we introduce corrugated triangular 'Dinosaur' photonic crystal cavities, and develop a tapered, quasi loss-free cavity-waveguide interface to adiabatically interconvert Bloch and waveguide modes. We optimize the cavity-waveguide interface to minimize photon losses and demonstrate that its adjustment allows precise tuning of the light-matter interaction.

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This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
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Waveguide-coupled photonic crystal cavities with a triangular cross section fabricated by angled etching are suitable to interface embedded color centers with flying photonic...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2510.26335 [2] arXiv https://arxiv.org/abs/2510.26335 [3] Publisher https://arxiv.org/abs/2510.26335

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