Relationship between the order of rotation symmetry in perforated apertures and terahertz transmission characteristics
2012; SPIE; Volume: 51; Issue: 11 Linguagem: Inglês
10.1117/1.oe.51.11.119002
ISSN1560-2303
AutoresJoong-Wook Lee, Jin‐Kyu Yang, Ik‐Bu Sohn, Hun-Kook Choi, Chul Kang, Chul‐Sik Kee,
Tópico(s)Antenna Design and Optimization
ResumoWe investigate the terahertz (THz) transmission characteristics of complex slot arrays with various order of rotation symmetry. Our experimental results reveal that an asterisk-shaped aperture with sixfold rotational symmetry is the most appropriate shape for realizing polarization-independent, highly efficient, and frequency-selective transmission of THz radiation. A systematic understanding of the THz transmission characteristics is useful for achieving versatile platforms and custom-designed metallic devices with specific electromagnetic responses.
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