Hybridization of Multiple Vibrational Modes via Strong Coupling Using Confined Light Fields
Hybridization of Multiple Vibrational Modes via Strong Coupling Using Confined Light Fields
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DOI：
10.1002/adom.201900403
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发表时间：
2019-09-01
影响因子：
9
通讯作者：
Barnes, William L.
中科院分区：
文献类型：
--
作者：
Menghrajani, Kishan S.;Fernandez, Henry A.;Barnes, William L.
置于光学微腔中的分子的强耦合可能导致形成称为极化激元的混合态，这种态继承了光学腔模式和分子共振的特征。这对于激子和振动分子共振都是可能的。先前的工作表明，强耦合可用于杂化两种不同的激子共振；当空腔中包含不止一种分子种类时，就可以实现这一点。这里表明，在合适的条件下，同一分子单元的三种不同的分子振动共振也可以耦合在一起，所得极化子具有所有三种振动共振的特征。这些结果表明，强耦合可能用于以比以前认为的更丰富、更微妙的方式操纵振动共振，从而为通过振动强耦合更好地控制分子系统和分子过程开辟了道路。
Strong coupling of molecules placed in an optical microcavity may lead to the formation of hybrid states called polaritons, states that inherit characteristics of both the optical cavity modes and the molecular resonance. This is possible for both excitonic and vibrational molecular resonances. Previous work has shown that strong coupling may be used to hybridize two different excitonic resonances; this can be achieved when more than one molecular species is included in the cavity. Here it is shown that under suitable conditions three different molecular vibrational resonances of the same molecular unit may also be coupled together, the resulting polariton having characteristics of all three vibrational resonances. These results suggest that strong coupling might be used to manipulate vibrational resonances in a richer and subtler way than previously considered, opening a path to greater control of molecular systems and molecular processes via vibrational strong coupling.