Nonreciprocal cavities and the time-bandwidth limit
Nonreciprocal cavities and the time-bandwidth limit
复制标题
DOI：
10.1364/optica.6.000104
复制
发表时间：
2019-01-20
期刊：
影响因子：
10.4
通讯作者：
Alu, Andrea
中科院分区：
文献类型：
--
作者：
Mann, Sander A.;Sounas, Dimitrios L.;Alu, Andrea
时间带宽限制本质上与谐振寿命及其光谱带宽相关，直接影响脉冲的最大存储时间与其频率内容的关系。最近，有人认为，非互易空腔可以通过打破其内耦合和外耦合系数的严格相等性来克服这一限制。在这里，我们研究了非互易性对线性谐振、时不变腔的影响，并从微观可逆性中推导出控制其动力学的一般关系。我们表明，不可逆腔在时间带宽限制方面没有提供特定的优势，但为纳米光子系统提供了其他有吸引力的特性。 (c) 2019 年美国光学协会根据 OSA 开放获取出版协议的条款
The time-bandwidth limit inherently relates the lifetime of a resonance and its spectral bandwidth, with direct implications for the maximum storage time of a pulse versus its frequency content. Recently, it has been argued that nonreciprocal cavities may overcome this constraint by breaking the strict equality of their incoupling and outcoupling coefficients. Here, we study the implications of nonreciprocity on resonant linear, time-invariant cavities and derive general relations, stemming from microscopic reversibility, that govern their dynamics. We show that nonreciprocal cavities do not provide specific advantages in terms of the time-bandwidth limit, but enable other attractive properties for nanophotonic systems. (c) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement