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Few-layer metamaterials for spontaneous emission enhancement

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Abstract

Multilayer hyperbolic metamaterials consisting of alternating metal and dielectric layers have important applications in spontaneous emission enhancement. In contrast to the conventional choice of at least dozens of layers in multilayer structures to achieve tunable Purcell effect on quantum emitters, our numerical calculations reveal that multilayers with fewer layers and thinner layers would outperform in the Purcell effect. These discoveries are attributed to the negative contributions by an increasing layer number to the imaginary part of the reflection coefficient and the stronger coupling between surface plasmon polariton modes on a thinner metal layer. This work could provide fundamental insights and a practical guide for optimizing the local density of optical states enhancement functionality of layered metamaterials.

© 2021 Optical Society of America

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Corrections

Ling Li, Zhangyu Zhou, Changjun Min, and Xiaocong Yuan, "Few-layer metamaterials for spontaneous emission enhancement: publisher’s note," Opt. Lett. 46, 1583-1583 (2021)
https://opg.optica.org/ol/abstract.cfm?uri=ol-46-7-1583

8 March 2021: A typographical correction was made to the title.


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