Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2012-03-01

Journal: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION

Included Journals: Scopus、PubMed、EI、SCIE

Volume: 29

Issue: 3

Page Number: 209-215

ISSN: 1084-7529

Abstract: This work demonstrates the angular dependence of dual-band negative-index materials implemented by elliptical nanohole arrays (ENAs) consisting of an Al2O3 dielectric layer between two Au films. This article, it is believed for the first time, analyzes the scattering coefficients and displacement current of the ENA at different angles of plane-wave incidence to show that the ENA is double negative (showing both a negative effective permeability mu(eff) and a negative effective permittivity epsilon(eff)) at multiple wavelengths (1095 and 1680 nm) for p polarization over a broad range of incident angles. (C) 2012 Optical Society of America