Journal
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
Volume 56, Issue 10, Pages 2381-+Publisher
WILEY
DOI: 10.1002/mop.28597
Keywords
chiral metamaterial; optical activity; circular dichroism
Categories
Funding
- K.C. Wong Magna Fund in Ningbo University
Ask authors/readers for more resources
A dual-band planar chiral metamaterial (CMM) with strong optical activity is experimentally constructed by twisted split rings. Resonant frequencies with strong optical activity are around 7.9 and 8.9 GHz for right circularly polarized (RCP) and 9.95 and 10.9 GHz for left circularly polarized (LCP) wave, respectively. In particular, the two independent eigenfrequencies depend sensitively on the twist angles, which can offer a convenient approach in building multiband or tunable CMMs. With the twist angle increased from 0 degrees to 90 degrees, the resonant frequencies play an obvious blueshift for RCP wave and redshift for LCP wave, respectively. Current distributions are also studied, which demonstrate that the observed resonances are linked to the excitation of multimodal standing current waves. Microwave experiments are performed to successfully realize these ideas and results are in good agreement with the numerical results. (C) 2014 Wiley Periodicals, Inc.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available