期刊
APPLIED PHYSICS LETTERS
卷 102, 期 24, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4812200
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资金
- Australian Research Council [DP110100713, DE120100055]
- Australian Research Council [DE120100055] Funding Source: Australian Research Council
We theoretically demonstrate an advanced optical modulator based on graphene-enabled metamaterial with voltage-controllable reflectance. A significant modulation depth of the reflection coefficient is achieved through a voltage biasing of the graphene's Fermi level, leading to an almost instantaneous change in the effective permittivity of the graphene. We show that even a single graphene layer integrated into the structure of a simple metamaterial absorber enables a relative change in the reflectance as high as 361% at near-infrared frequencies. The designed modulator may be used in optical communication systems and biomedical sensing apparatus. (C) 2013 AIP Publishing LLC.
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