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Cavity enhanced terahertz modulation
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DOI：10.1063/1.4868416.png)
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Abstract
En 中文
We present a versatile concept for all optical terahertz (THz) amplitude modulators based on a Fabry-Perot semiconductor cavity design. Employing the high reflectivity of two parallel meta-surfaces allows for trapping selected THz photons within the cavity and thus only a weak optical modulation of the semiconductor absorbance is required to significantly damp the field within the cavity. The optical switching yields to modulation depths of more than 90% with insertion efficiencies of 80%. (C) 2014 AIP Publishing LLC.
Keywords:
PHOTONIC CRYSTALS
SILICON
METAMATERIALS
GRAPHENE
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3.6
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10.4W
Citations:
17.8W