Nonisosceles bowtie nanoantennas with central symmetry are studied numerically. Compared with the axial symmetry, the central symmetry suppresses the mode splitting and gap enhancement by coupling and interferences of four edges.
© 2013 OSA
J. Chen, F. Gou, and Z. Zhang, "Breaking the Axial Symmetry of Plasmonic Nanoantennas," in Frontiers in Optics 2013, I. Kang, D. Reitze, N. Alic, and D. Hagan, eds., OSA Technical Digest (online) (Optical Society of America, 2013), paper FTu5D.3.
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