arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.11615physics.opticscond-mat.stat-mech
收藏

微腔中光的非马尔可夫随机共振

Non-Markovian Stochastic Resonance of Light in a Microcavity

K. J. H. Peters, Z. Geng, K. Malmir, J. M. Smith, S. R. K. Rodriguez

摘要:

我们报告的第一个观察到的非马尔可夫随机共振,即,在具有存储器的系统中对周期信号进行噪声辅助放大。我们的系统是一个充油的光学微腔,由连续波激光驱动,在其非线性光学响应中具有记忆性。通过调制腔长同时向驱动激光器添加噪声,我们观察到作为噪声方差的函数的透射信噪比中的峰值。数值模拟再现了我们的实验观测结果,进一步揭示了随机共振带宽随非线性记忆时间的增加而增大。在我们的充油腔中,可用于噪声辅助放大的频率范围是克尔非线性腔中的$10^8$倍。我们的研究结果为探索充油腔阵列中非线性、噪声和记忆的相互作用铺平了道路,其中非马尔科夫动力学可以增强噪声辅助传输和同步效应。

英文摘要:

We report the first observation of non-Markovian stochastic resonance, i.e., noise-assisted amplification of a periodic signal in a system with memory. Our system is an oil-filled optical microcavity which, driven by a continuous wave laser, has memory in its nonlinear optical response. By modulating the cavity length while adding noise to the driving laser, we observe a peak in the transmitted signal-to-noise ratio as a function of the noise variance. Our experimental observations are reproduced by numerical simulations, which further reveal that the stochastic resonance bandwidth is enlarged by the memory time of the nonlinearity. This frequency range available for noise-assisted amplification is $10^8$ times greater in our oil-filled cavity than in a Kerr nonlinear cavity. Our results pave the way for exploring the interplay of nonlinearity, noise, and memory, in oil-filled cavity arrays, where non-Markovian dynamics could enhance noise-assisted transport and synchronization effects.

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。

↑