Abstract
In a recent paper, Ding, Liang, Zhang, Zhou, and Yuan [Phys. Rev. E 79, 016604 (2009)] reported a negative refraction of double-ring resonator structure at the normal incidence based on an intrinsical electric and an antisymmetric resonances. We argue that the antisymmetric resonance does not respond to a negative permeability, and the left-handed nature comes from the single-negative refraction rather than the double-negative one.
Sign-in/Register to access full text options 
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.
