Methods of epsilon-near-zero optical modulation

A method of optical modulation in a non-resonant epsilon-near-zero (EMZ) plasmonic electro-optical modulator is provided. An optical carrier is injected into a waveguide optically coupled to a layer of transparent conductive material having an epsilon-near-zero (ENZ) wavelength. The transparent cond...

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Hauptverfasser: Luk, Ting S, Wood, Michael, Geib, Kent M, Ihlefeld, Jon, Serkland, Darwin K, Keeler, Gordon Arthur, Reines, Isak C, Shank, Joshua, Campione, Salvatore
Format: Patent
Sprache:eng
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Zusammenfassung:A method of optical modulation in a non-resonant epsilon-near-zero (EMZ) plasmonic electro-optical modulator is provided. An optical carrier is injected into a waveguide optically coupled to a layer of transparent conductive material having an epsilon-near-zero (ENZ) wavelength. The transparent conductive material layer constitutes a portion of a capacitive structure that includes a gate dielectric layer. A time-varying bias voltage applied across the gate dielectric layer shifts the ENZ wavelength toward the carrier wavelength, and thereby impresses a phase modulation pattern on the carrier wave.