Observation of reflectionless absorption due to spatial Kramers–Kronig profile

Reflectionless absorption independent of the angle of incidence usually requires the introduction of gain media into the system. Here, Ye et al. implement a recent theoretical proposal to achieve this with a spatially varying permittivity, showing that this approach is experimentally feasible.

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Detalles Bibliográficos
Autores principales: Dexin Ye, Cheng Cao, Tianyi Zhou, Jiangtao Huangfu, Guoan Zheng, Lixin Ran
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/b5c6efd464704bf9a6894c443c53e488
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Sumario:Reflectionless absorption independent of the angle of incidence usually requires the introduction of gain media into the system. Here, Ye et al. implement a recent theoretical proposal to achieve this with a spatially varying permittivity, showing that this approach is experimentally feasible.