We observe large reciprocal rotation in quasi-2D chiral metal gratings. The effect originates from asymmetric coupling of surface modes centered at the air and substrate interfaces and violates neither reciprocity nor reversality of light-matter interaction.
© 2005 Optical Society of America
(260.0260) Physical optics : Physical optics
(260.2130) Physical optics : Ellipsometry and polarimetry
(350.0350) Other areas of optics : Other areas of optics
(350.2770) Other areas of optics : Gratings
M. Kuwata-Gonokami, N. Saito, Y. Ino, M. Kauranen, K. Jefimovs, T. Vallius, J. Turunen, and Y. Svirko, "Large Reciprocal Polarization Rotation in Planar Chiral Metal Nanostructures," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper JTuC106.
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