Abstract
The properties of periodic pairs of mutually twisted metallic (silver) crosses separated by dielectric layer have been investigated by numerical simulation. The results show that the exceptionally strong polarization rotation and circular dichroism, negative permeability and negative refractive index are found at the infrared communication wavelength (1.55 microm).
Highlights
Metamaterials with negative refraction index [1] have gained a lot of attraction during the last decade
The properties of periodic pairs of mutually twisted metallic crosses separated by dielectric layer have been investigated by numerical simulation
The results show that the exceptionally strong polarization rotation and circular dichroism, negative permeability and negative refractive index are found at the infrared communication wavelength (1.55μm). 2009 Optical Society of America
Summary
Metamaterials with negative refraction index [1] have gained a lot of attraction during the last decade. The periodic pairs of metallic crosses structure which can be looked upon as an extension of the cut-wire-pair has been theoretically analyzed in the microwave and terahertz region [16,17,18]. This structure has negative refractive index and is independent of the polarization of the incident wave. Very strong gyrotropy (chirality) was reported in the bi-layer chiral rosette structure and similar chiral magnetic metamaterials, which can be looked upon as a chiral version of the cut-wire-pair, at microwave and optical wave region [24,25,26,27,28]. Dependence of twist angle and dielectric layer thickness are examined to explore strong optical activity and negative refractive index at the infrared communication wavelength (1.55μm)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
