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Directive emission of red conjugated polymer embedded within zero index metamaterials

Cao, Tun; Zou, Yang; Adawi, Ali; Cryan, Martin J.

Authors

Tun Cao

Yang Zou

Martin J. Cryan



Abstract

Abstract: We numerically demonstrate an impedance-matched multilayer stacked fishnet metamaterial that has zero index with flat high transmittance from 600nm to 620nm. The effective refractive index(𝑛𝑒𝑓𝑓) is calculated to be −0.045 + 0.466i and the normalize effective impedance(𝑍𝑒𝑓𝑓/𝑍0) is 0.956-0.368i at 610nm. The light emitted by a red conjugated polymer layer embedded in such a zero index metamaterial (ZIM) is concentrated in a narrow cone in the surrounding media, where the half-power beam width (HPBW) of the center lobe of the radiation pattern is around 25° in the wavelength range between 600nm and 620nm, giving directive emission in the visible region. This proposed light focusing system can be applied to sensing, beam collimating and filtering functionalities.

Citation

Cao, T., Zou, Y., Adawi, A., & Cryan, M. J. (2014). Directive emission of red conjugated polymer embedded within zero index metamaterials. Optics express, 22(19), 22699-22706. https://doi.org/10.1364/OE.22.022699

Journal Article Type Article
Acceptance Date Sep 8, 2014
Online Publication Date Sep 11, 2014
Publication Date Sep 22, 2014
Deposit Date Oct 28, 2015
Publicly Available Date Nov 23, 2017
Journal Optics express
Print ISSN 1094-4087
Electronic ISSN 1094-4087
Publisher Optica
Peer Reviewed Peer Reviewed
Volume 22
Issue 19
Pages 22699-22706
DOI https://doi.org/10.1364/OE.22.022699
Keywords Red conjugated polymer, Zero index metamaterials
Public URL https://hull-repository.worktribe.com/output/380392
Publisher URL https://www.osapublishing.org/oe/abstract.cfm?uri=oe-22-19-22699
Additional Information Authors' accepted manuscript of article published in: Optics express, 2014, v.22, issue 19

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Copyright Statement
© 2014 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.







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