Tunable terahertz metamaterials based on metal-insulator phase transition of VO2 layers

Aurelian Crunteanu; J. Leroy; G. Humbert; D. Ferachou; Jean-Christophe Orlianges; Corinne Champeaux; Pierre Blondy

Tunable terahertz metamaterials based on metal-insulator phase transition of VO2 layers

Aurelian Crunteanu J. Leroy G. Humbert D. Ferachou Jean-Christophe Orlianges ¹ Corinne Champeaux ¹ Pierre Blondy

1 Axe 2 : procédés de traitements de surface

SPCTS - Science des Procédés Céramiques et de Traitements de Surface

Abstract : We designed a tunable metamaterial in the terahertz frequency domain (0.1 - 1 THz) based on periodical arrays of metallic resonators on top of vanadium dioxide thin films deposited on a sapphire substrate. We simulate and show experimentally that the frequency response of the fabricated metamaterial is drastically changing as the vanadium dioxide under layer performs a reversible temperature-driven phase transition from an insulating to a metallic state. The hybrid metamaterial is designed also for the electrical activation of the underneath vanadium dioxide material in order to realize faster dynamical switches and modulation functions for the terahertz waves.

Type de document :

Article dans une revue

Domaine :

Chimie / Matériaux

Liste complète des métadonnées

https://hal-unilim.archives-ouvertes.fr/hal-00942939
Contributeur : Pamela Bathias <>
Soumis le : jeudi 6 février 2014 - 17:23:02
Dernière modification le : jeudi 30 mai 2019 - 08:36:20

Tunable terahertz metamaterials based on metal-insulator phase transition of VO2 layers

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Tunable terahertz metamaterials based on metal-insulator phase transition of VO2 layers

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