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arXiv · 2406.08212

Designing metasurface optical interfaces for solid-state qubits using many-body adjoint shape optimization

Amelia R. Klein·Nader Engheta·Lee C. Bassett
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Abstract

We present a general strategy for the inverse design of metasurfaces composed of elementary shapes. We use it to design a structure that collects and collimates light from nitrogen-vacancy centers in diamond. Such metasurfaces constitute scalable optical interfaces for solid-state qubits, enabling efficient photon coupling into optical fibers and eliminating free-space collection optics. The many-body shape optimization strategy is a practical alternative to topology optimization that explicitly enforces material and fabrication constraints throughout the optimization, while still achieving high performance. The metasurface is easily adaptable to other solid-state qubits, and the optimization method is broadly applicable to fabrication-constrained photonic design problems.

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Amelia R. Klein, Nader Engheta, Lee C. Bassett. 2024-06-12. Designing metasurface optical interfaces for solid-state qubits using many-body adjoint shape optimization. https://doi.org/10.1364/oe.522501

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