论文标题
在电信波长处的非常大的percell因子的混合光子质量腔设计
Hybrid photonic-plasmonic cavity design for very large Purcell factors at telecom wavelengths
论文作者
论文摘要
杂化光子质量腔可以量身定制以同时显示高Q因子和极小模式的体积，从而导致purcell因子的巨大值FP。在不同的杂化构型中，基于纳米粒子在-A-MIRROR（NPOM）等离子体腔提供了最低模式的体积之一，尽管到目前为止其操作已被限制为低于1μm的波长。在这里，我们提出了一种由硅光子晶体腔组成的杂种构型，其中心在其中心引入了金纳米颗粒。 This hybrid system operates at telecom wavelengths and provides high Q-factor values (Q ${\approx} 10^{5}$) and small normalized mode volumes (Vm ${\approx} 10^{-4}$), leading to extremely large Purcell factor values, FP ${\approx} 10^{7}$ - ${10^{8}}$.所提出的腔体可用于不同应用，例如分子验光力学，生物和化学感应，全光信号处理或增强的拉曼光谱，在相关的电信波长状态下。
Hybrid photonic-plasmonic cavities can be tailored to display high Q-factors and extremely small mode volumes simultaneously, which results in large values of the Purcell factor, FP. Amongst the different hybrid configurations, those based on a nanoparticle-on-a-mirror (NPoM) plasmonic cavity provide one of the lowest mode volumes, though so far their operation has been constrained to wavelengths below 1 μm. Here, we propose a hybrid configuration consisting of a silicon photonic crystal cavity with a slot at its center in which a gold nanoparticle is introduced. This hybrid system operates at telecom wavelengths and provides high Q-factor values (Q ${\approx} 10^{5}$) and small normalized mode volumes (Vm ${\approx} 10^{-4}$), leading to extremely large Purcell factor values, FP ${\approx} 10^{7}$ - ${10^{8}}$. The proposed cavity could be used in different applications such as molecular optomechanics, bio- and chemo-sensing, all-optical signal processing or enhanced Raman spectroscopy in the relevant telecom wavelength regime.
