Optical response of a slab with time-periodic dielectric function &#949;(t): towards a dynamic metamaterial

Peter Halevi; Uriel Algredo-Badillo; Jorge R. Zurita-Sánchez

doi:10.1117/12.892953

12 September 2011 Optical response of a slab with time-periodic dielectric function ε(t): towards a dynamic metamaterial

Peter Halevi, Uriel Algredo-Badillo, Jorge R. Zurita-Sánchez

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Proceedings Volume 8095, Active Photonic Materials IV; 80950I (2011) https://doi.org/10.1117/12.892953
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

Abstract

A dielectric medium with time-periodic permittivity ε(t) gives rise to a band structure that is periodic in the frequency ω and exhibits wave vector gaps ▵k. Light reflected from and transmitted by such a dynamic slab contains harmonics ω - nΩ (n = 0, ±1,...) where Ω is the modulation frequency. Also, giant resonances are obtained in the response for ω = nΩ/2 with odd n, provided that a certain condition is satisfied for the slab thickness. Further, we show that a dynamic medium can be realized by means of a low-pass transmission line with varactors whose capacitance is C(t) = a ε(t) and inductances L = a μ₀, a being the period.

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Peter Halevi, Uriel Algredo-Badillo, and Jorge R. Zurita-Sánchez "Optical response of a slab with time-periodic dielectric function ε(t): towards a dynamic metamaterial", Proc. SPIE 8095, Active Photonic Materials IV, 80950I (12 September 2011); https://doi.org/10.1117/12.892953

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