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Proceedings Paper

Varying the periodicity to achieve high quality factor on asymmetrical H-Shaped resonators
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Paper Abstract

An asymmetrical H-shaped resonator (ASH) has been designed using gold on a fused silica substrate. The aim is to obtain a high - quality factor at the reflectance resonance peaks in the mid - infrared wavelength of 2 μm to 8 μm. The structures were modelled using the Finite Difference Time Domain (FDTD) Lumerical Solution simulation software by adjusting the parameter of periodic boundary condition on the X and Y-axis and perfectly matched layer (PML) on the Z- axis. The asymmetric structures give double resonance peaks that depend on the arm-length of the structure. The periodicity along the X and Y-axis was varied to tune the width of the resonant peaks in order to obtain the maximum Qfactor. Experimental results broadly confirm the simulations.

Paper Details

Date Published: 18 April 2016
PDF: 6 pages
Proc. SPIE 9883, Metamaterials X, 98831N (18 April 2016); doi: 10.1117/12.2230565
Show Author Affiliations
Ili F. Mohamad Ali Nasri, Univ. of Glasgow (United Kingdom)
Ifeoma G. Mbomson, Univ. of Glasgow (United Kingdom)
Richard M. De La Rue, Univ. of Glasgow (United Kingdom)
Nigel P. Johnson, Univ. of Glasgow (United Kingdom)

Published in SPIE Proceedings Vol. 9883:
Metamaterials X
Allan D. Boardman; Nigel P. Johnson; Kevin F. MacDonald; Ekmel Özbay, Editor(s)

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