论文标题
光学微腔的基本热噪声极限
Fundamental thermal noise limits for optical microcavities
论文作者
论文摘要
我们提出了高质量因子（$ q $），小模式体积（$ v $）光学微腔的热浪费噪声的联合理论和实验表征。与宏观的Fabry-Perot谐振器中的布朗运动相似，与良好的稳定性限制相似，微腔热浪费噪声会导致模式依赖性体积依赖性最大有效质量因子。发现最先进的捏造微腔位于该结合的一个数量级内。我们通过测量高$ q/v $硅光子晶体腔的噪声光谱来确认我们理论的假设，并运用我们的结果来估计使用腔体能量体积材料非线性的室温，全光量子的最佳性能。
We present a joint theoretical and experimental characterization of thermo-refractive noise in high quality factor ($Q$), small mode volume ($V$) optical microcavities. Analogous to well-studied stability limits imposed by Brownian motion in macroscopic Fabry-Perot resonators, microcavity thermo-refractive noise gives rise to a mode volume-dependent maximum effective quality factor. State-of-the-art fabricated microcavities are found to be within one order of magnitude of this bound. We confirm the assumptions of our theory by measuring the noise spectrum of high-$Q/V$ silicon photonic crystal cavities and apply our results to estimate the optimal performance of proposed room temperature, all-optical qubits using cavity-enhanced bulk material nonlinearities.
