Low-loss terahertz topological transmission in a silicon-based ridge waveguide platformстатья
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Дата последнего поиска статьи во внешних источниках: 4 марта 2026 г.
Аннотация:Extending the terahertz (THz) silicon-based ridge waveguide platform to THz asymmetric topological pumping remains unexplored due to theoretical deficiency and severe coupling inefficiency, which hinder practical deployment for potential THz on-chip 6G applications. Here, we experimentally demonstrate asymmetric topological pumping in a silicon-based terahertz ridge waveguide array operating over 159–171 GHz. A four-channel Rice–Mele (RM) configuration with modulated waveguide widths and spacings enables robust unidirectional transport with over 15 dB contrast across 12 GHz. The device established a CMOS-compatible, broadband, and robust platform for integrated THz photonic circuits.