arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1012.5481physics.optics
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金刚石中超高Q纳米束腔的设计

Ultra-high-Q nanobeam cavity design in Diamond

Igal Bayn, Joseph Salzman, Rafi Kalish

摘要:

提出了一种新颖的三角形截面纳米梁设计。这种设计使得实现具有改进的光学特性的纳米腔成为可能。通过三维时域有限差分法(FDTD)计算,研究了金刚石腔体的品质因数Q和模体积Vm与腔体几何参数空间的关系。我们预测了一个超高Q腔,Q值为\aprox 2.51 \times 10 ^6,Vm=1.06 \times(λ/n)^3。模式优先辐射是向上的。讨论了潜在应用的影响。所提出的纳米梁使得腔体的制造能够不依赖于先前大多数方法中所需的预先存在的独立金刚石膜。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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