Journal
APPLIED PHYSICS EXPRESS
Volume 6, Issue 2, Pages -Publisher
JAPAN SOC APPLIED PHYSICS
DOI: 10.7567/APEX.6.022001
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Funding
- 973 Program of China [2011CB301800]
- National Natural Science Funds [61138002]
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A chiral metamaterial based on a double-layer twisted Y shape structure is presented that achieves obvious circular dichroism and giant optical rotation at different frequencies. When a y-polarized wave is incident to this chiral metamaterial, circular dichroism with a great difference between the transmission coefficients for the circularly polarized waves is obtained at 12.28 GHz. Meanwhile, 90 degrees optical rotation is observed at 12.70 GHz, where the incident y-polarized wave is transformed into its cross-polarization with a transmission coefficient of -1.15 dB. Surface current distributions are calculated to demonstrate the coupling between the electric and magnetic fields. (C) 2013 The Japan Society of Applied Physics
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