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Super Unit Cells in Aperture-Based Metamaterials
Joint Authors
Tanasković, Dragan
Jakšić, Zoran
Obradov, Marko
Jakšić, Olga
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-01-31
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
An important class of electromagnetic metamaterials are aperture-based metasurfaces.
Examples include extraordinary optical transmission arrays and double fishnets with negative refractive index.
We analyze a generalization of such metamaterials where a simple aperture is now replaced by a compound object formed by superposition of two or more primitive objects (e.g., rectangles, circles, and ellipses).
Thus obtained “super unit cell” shows far richer behavior than the subobjects that comprise it.
We show that nonlocalities introduced by overlapping simple subobjects can be used to produce large deviations of spectral dispersion even for small additive modifications of the basic geometry.
Technologically, some super cells may be fabricated by simple spatial shifting of the existing photolithographic masks.
In our investigation we applied analytical calculations and ab initio finite element modeling to prove the possibility to tailor the dispersion including resonances for plasmonic nanocomposites by adjusting the local geometry and exploiting localized interactions at a subwavelength level.
Any desired form could be defined using simple primitive objects, making the situation a geometrical analog of the case of series expansion of a function.
Thus an additional degree of tunability of metamaterials is obtained.
The obtained designer structures can be applied in different fields like waveguiding and sensing.
American Psychological Association (APA)
Tanasković, Dragan& Jakšić, Zoran& Obradov, Marko& Jakšić, Olga. 2015. Super Unit Cells in Aperture-Based Metamaterials. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1068911
Modern Language Association (MLA)
Tanasković, Dragan…[et al.]. Super Unit Cells in Aperture-Based Metamaterials. Journal of Nanomaterials No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1068911
American Medical Association (AMA)
Tanasković, Dragan& Jakšić, Zoran& Obradov, Marko& Jakšić, Olga. Super Unit Cells in Aperture-Based Metamaterials. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1068911
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1068911