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Proceedings Paper

Epsilon-near-zero metamaterials realized using metal-dielectric stacks as a potential candidate for nonlinear applications at visible wavelength (Conference Presentation)
Author(s): Sisira Suresh; Orad Reshef; M. Zahirul Alam; Jeremy Upham; Mohammad Karimi; Robert Boyd

Paper Abstract

In this work, we demonstrated that metamaterials composed of alternating silver and silica layers of subwavelength thickness can act as an effective epsilon-near-zero (ENZ) medium. This ENZ condition is accessible to wide spectral tunability in the entire visible spectrum by adjusting the respective dimensions of constituent metal and dielectric. We also observed a pronounced enhancement of nonlinear response at the ENZ region. The capability to obtain large nonlinearities at pre-assigned optical wavelengths makes this class of metamaterials a flexible platform for nonlinear applications in the visible spectrum.

Paper Details

Date Published: 10 March 2020
Proc. SPIE 11278, Ultrafast Phenomena and Nanophotonics XXIV, 1127808 (10 March 2020); doi: 10.1117/12.2543805
Show Author Affiliations
Sisira Suresh, Univ. of Ottawa (Canada)
Orad Reshef, University of Ottawa (Canada)
M. Zahirul Alam, Univ. of Ottawa (Canada)
Jeremy Upham, Univ. of Ottawa (Canada)
Mohammad Karimi, Univ. of Ottawa (Canada)
Robert Boyd, Univ. of Ottawa (Canada)
Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 11278:
Ultrafast Phenomena and Nanophotonics XXIV
Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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