Metamaterial Analogues of Strongly Coupled Molecular Ensembles.

Metamaterial Analogues of Strongly Coupled Molecular Ensembles.
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DOI:
10.1021/acsphotonics.1c00931
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发表时间:
2021-10-20
期刊:
影响因子:
7
通讯作者:
Barnes WL
Barnes WL
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Baraclough M;Hooper IR;Barnes WL

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由于光与物质的强耦合而形成的极化激元模式导致了物理学、化学和材料科学的令人兴奋的发展。通过将分子强耦合到受限光场来改变分子材料的性质的潜力是如此深远和如此有吸引力,以至于一个被称为“极化激元化学”的新领域正在出现。然而,所涉及的材料的分子尺度使得在单个谐振器水平上探测强耦合极具挑战性。在这里,我们提供了一种基于超材料的补充方法,这种方法使我们能够使用厘米级结构,从而开辟了一种探索强耦合现象的新途径。作为原理证明,我们表明,放置在射频腔内的超分子可能表现出强耦合,并表明近场射频技术允许我们,第一次,探测强耦合条件下的单个超分子的响应。
The formation of polariton modes due to the strong coupling of light and matter has led to exciting developments in physics, chemistry, and materials science. The potential to modify the properties of molecular materials by strongly coupling molecules to a confined light field is so far-reaching and so attractive that a new field known as “polaritonic chemistry” is now emerging. However, the molecular scale of the materials involved makes probing strong coupling at the individual resonator level extremely challenging. Here, we offer a complementary approach based upon metamaterials, an approach that enables us to use cm-scale structures, thereby opening a new way to explore strong coupling phenomena. As proof-of-principle, we show that metamolecules placed inside a radio frequency cavity may exhibit strong coupling and show that near-field radio frequency techniques allow us, for the first time, to probe the response of individual metamolecules under strong coupling conditions.
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