Rare-Earth Monopnictide Alloys for Tunable, Epitaxial, Designer Plasmonics,ACS Photonics

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Rare-Earth Monopnictide Alloys for Tunable, Epitaxial, Designer Plasmonics
ACS Photonics ( IF 6.5 ) Pub Date : 2018-07-02 00:00:00 , DOI: 10.1021/acsphotonics.8b00288
E. M. Krivoy ₁ , A. P. Vasudev ₂ , S. Rahimi ₁ , R. A. Synowicki ₃ , K. M. McNicholas ₁ , D. J. Ironside ₁ , R. Salas ₁ , G. Kelp _{4,

5} , D. Jung ₆ , H. P. Nair ₁ , G. Shvets ₅ , D. Akinwande ₁ , M. L. Lee ₇ , M. L. Brongersma ₂ , S. R. Bank ₁

Affiliation

We demonstrate that plasmonic response can be tuned spectrally via the alloy composition of an epitaxial semimetallic film. Specifically, attenuated total reflectance studies show that the surface plasmon resonance of rare-earth monopnictide La_xLu_1–xAs alloy films can be tuned across the mid-IR, while lattice-matching to technologically important substrates. The electrical properties are a strong function of the composition, which, in turn, manifests as tunability of the optical properties. The ability to produce tunable (semi)metals that can be epitaxially integrated with III–V emitters and absorbers is expected to enable a new generation of novel nanophotonic device architectures and functionality.

中文翻译：

适用于可调谐外延等离子等离子体的稀土单素合金

我们证明，可以通过外延半金属膜的合金成分在光谱上调节等离子体响应。特别是，衰减全反射研究表明，稀土单肽La _x Lu _{1– x} As合金薄膜的表面等离子体共振可以在中红外范围内进行调谐，同时与技术上重要的基片匹配。电性能是组合物的强功能，其反过来表现为光学性能的可调性。生产能够与III–V发射器和吸收器外延集成的可调谐（半）金属的能力有望实现新一代新颖的纳米光子器件架构和功能。

更新日期：2018-07-02

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