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Ballistic metamaterials
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DOI：10.1364/OPTICA.402891.png)
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We report the theoretical prediction and experimental realization of the optical phenomenon of ballistic resonance. This resonance, resulting from the interplay between free charge motion in confining geometries and periodic driving electromagnetic fields, can be utilized to achieve negative permittivity at frequencies well above the bulk plasma frequency. As a proof of principle, we demonstrate all-semiconductor hyperbolic metamaterials operating at frequencies 60% above the plasma frequency of the constituent doped semiconductor metallic layer. Ballistic resonance will therefore enable the realization and deployment of various applications that rely on local field enhancement and emission modulation, typically associated with plasmonic materials, in new materials platforms. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keyword:
NEGATIVE REFRACTION
OPTICAL HYPERLENS
期刊
IF:
8.5
论文数:
2.4K
被引数:
2.1W
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