Journal
OPTICS EXPRESS
Volume 17, Issue 6, Pages 4360-4366Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.004360
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Funding
- NPU Foundation [WO18101]
- Chinese State Key Laboratory of Tribology [SKLT 08B12]
- China Scholarship Council
- Northwestern Polytechnical University
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The tunability of an omega-type left handed metamaterial was demonstrated at microwave frequencies via the magnetic control of liquid crystal (LC) orientation. From the experimental and simulation results, it is shown that the left handed pass-band can be tuned by 220 MHz by changing the orientation of LC molecules by 90 degrees. A maximum index variation of 0.25 was obtained in the negative index regime with a measured LC birefringence of 0.05 in the 10 - 12GHz frequency band. (C) 2009 Optical Society of America
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