Metamaterials with a network structure

Жилин, А. А.; Tagantsev, D. K.; Alemaskin, M. Yu.; Shepilov, M. P.; Запалова, С. С.; Sazonov, M. E.

doi:10.1364/jot.79.000241

Cited by 2 publications

(1 citation statement)

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“…The method is intended for producing network-type silver-dielectric structures. As shown by an analysis of the literature data, 7 these are the metamaterials that are currently of the greatest interest.…”

Section: Introductionmentioning

confidence: 99%

Principles of a new method of obtaining optical metamaterials

et al. 2012

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Metamaterials that are network-type silver-dielectric structures are currently the most promising substances for observing negative refractive index in the optical region. This paper proposes a method for forming such metamaterials on the basis of silver-containing glasses. The method is based on the procedure of poling silver-containing glasses using an electrode (an anode) with a relief picture on the contact surface. When polarized glasses are heat-treated in a hydrogen atmosphere, a metallic (silver) film that replicates the electrode relief is formed on the surface of the glass. The corresponding picture and modulation depth of the electrode relief make it possible to create regular network structures of silver nanofilms (either a system of disks or a continuous film with holes) on the glass surface, with a characteristic size of the periodic structural elements less than 500 nm. The unification of the structures thus obtained into sandwiches makes it possible to obtain two-layer metamaterials.

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Section: Introductionmentioning

confidence: 99%

Principles of a new method of obtaining optical metamaterials

et al. 2012

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An all-silicon design of a high-efficiency broadband transmissive terahertz polarization convertor

Xing,

Zou,

Ding

et al. 2023

Front. Optoelectron.

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Polarization, a fundamental behavior of electromagnetic waves, holds immense potential across diverse domains such as environmental monitoring, biomedicine, and ocean exploration. However, achieving efficient modulation of terahertz waves with wide operational bandwidth poses significant challenges. Here, we introduce an all-silicon polarization converter designed specifically to operate in the terahertz range of the electromagnetic spectrum. Simulation results demonstrate that the average conversion efficiency of cross-linear waves exceeds 80% across a wide frequency range spanning from 1.00 to 2.32 THz, with the highest conversion efficiency peaking at an impressive 99.97%. Additionally, our proposed structure facilitates linear-to-circular polarization conversion with an ellipticity of 1 at 0.85 THz. Furthermore, by rotating the cross-shaped microstructure, active control over arbitrary polarization states can be achieved. To summarize, the proposed structure offers remarkable flexibility and ease of integration, providing a reliable and practical solution for achieving broadband and efficient polarization conversion of terahertz waves. Graphical abstract

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Metamaterials with a network structure

Cited by 2 publications

References 20 publications

Principles of a new method of obtaining optical metamaterials

Principles of a new method of obtaining optical metamaterials

An all-silicon design of a high-efficiency broadband transmissive terahertz polarization convertor

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