The Open Optics Journal

2015, 9 : 1-6
Published online 2015 January 23. DOI: 10.2174/1874328501509010001
Publisher ID: TOOPTSJ-9-1

Extraordinary Optical Reflection from Annular Dielectric Nanorod Arrays

Suxia Xie , Jiangjiamin Chen and Zhijian Li
School of Physics and Electronic Science, Hunan University of Science and Technology, Xiangtan 411201, P.R. China.

ABSTRACT

Responses of free standing subwavelength annular dielectric nanorod arrays are described. Extreme reflection peaks with high quality factor follow a multiple scattering approach, which can be explained by geometrical resonance. It is demonstrated that the value and the resonant frequency of the sharp geometric resonance modes can be tuned by geometric parameters such as the outer radius, inner radius of the annular nanorod array, and incidence angle sensitively, which can provide new regulating factors and guidance for the design of novel optical device using the dielectric material with a lower volume.

Keywords:

Annular nanorod, Dielectric, Extraordinary Optical Reflection, Geometric resonance.