Abstract
This chapter reviews some of the fundamental electromagnetic principles for a basic understanding of metamaterials and metamaterials as terahertz modulator. Section 2.1 covers the basic electromagnetic properties of materials with non-positive dielectric parameters, permitivity (ε) and permeability (μ). In Sect. 2.2, basic Lorentz oscillator model for permitivity is developed to illustrate the anomalous dispersion behavior that is fundamental to the modulator design. Finally, the basic principle of wave modulation using metamaterials is formulated in Sect. 2.3.
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Rout, S., Sonkusale, S. (2017). Background Theory. In: Active Metamaterials. Springer, Cham. https://doi.org/10.1007/978-3-319-52219-7_2
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DOI: https://doi.org/10.1007/978-3-319-52219-7_2
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