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arXiv · 1012.5481

Ultra-high-Q nanobeam cavity design in Diamond

Igal Bayn·Joseph Salzman·Rafi Kalish
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Abstract

A novel nanobeam design with a triangular cross-section is proposed. This design makes possible implementing nanocavities with improved optical properties. The dependence of a diamond-based cavity quality factor Q and mode volume Vm on geometry parameter space are studied via 3D FDTD computations. An ultra-high-Q cavity with Q\aprox 2.51 \times 10^6 and Vm=1.06 \times (λ/n)^3 is predicted. The mode preferential radiation is upward. The implications on the potential applications are discussed. The proposed nanobeam enables fabrication of the cavity without relying on a pre-existing free-standing diamond membrane as required in most previous approaches.

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Igal Bayn, Joseph Salzman, Rafi Kalish. 2010-12-25. Ultra-high-Q nanobeam cavity design in Diamond. https://arxiv.org/abs/1012.5481

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