Near-Perfect Absorption of Light by Coherent Plasmon-Exciton States
Near-Perfect Absorption of Light by Coherent Plasmon-Exciton States
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DOI：
10.1021/acs.nanolett.1c00389
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发表时间：
2021-05-03
期刊：
影响因子：
10.8
通讯作者：
Misawa, Hiroaki
中科院分区：
文献类型：
--
作者：
Gomez, Daniel E.;Shi, Xu;Misawa, Hiroaki
我们实验证明和理论研究的相干等离子激元激子态的形成表现出>90%的入射光的吸收（共振）和吸收的抵消。这些相干态由支持电子激发的材料与能够（接近）完美吸收光的等离子体结构之间的相互作用产生。我们通过测量光激发后可达到的电荷分离来说明这些相干态的潜在影响。我们的研究打开了前景，实现设备，利用相干效应的应用。
We experimentally demonstrate and theoretically study the formation of coherent plasmon-exciton states which exhibit absorption of >90% of the incident light (at resonance) and cancellation of absorption. These coherent states result from the interaction between a material supporting an electronic excitation and a plasmonic structure capable of (near) perfect absorption of light. We illustrate the potential implications of these coherent states by measuring the charge separation attainable after photoexcitation. Our study opens the prospect for realizing devices that exploit coherent effects in applications.