研究目的
Investigating the near-field vertical coupling between terahertz photonic crystal waveguides for efficient power transfer and data transmission.
研究成果
Near-field coupling between terahertz-range photonic crystal waveguides was successfully demonstrated with ≈ 80% efficiency at 320 GHz. Multi-Gbps data transmission was achieved, indicating practical applicability. Future work includes developing robust packaging for accurate waveguide positioning.
研究不足
The near-field coupling structure is highly sensitive to variation in vertical separation, requiring careful adjustment for optimal performance. The precise relative positioning of the waveguides is not known explicitly, necessitating parametric investigation.
1：Experimental Design and Method Selection:
The study leverages coupled-line techniques for near-field coupling between terahertz photonic crystal waveguides.
2：Sample Selection and Data Sources:
High-resistivity intrinsic silicon slabs with triangular lattice of circular through-holes are used.
3：List of Experimental Equipment and Materials:
Includes plasma etching for fabrication, WR-3 hollow metallic waveguides, and optoelectronic terahertz-range communications system.
4：Experimental Procedures and Operational Workflow:
Terahertz power is generated, transmitted through waveguides, and measured using a mixer. Data transmission is evaluated using a bit error rate tester.
5：Data Analysis Methods:
Transmission efficiency is probed and normalized against a straight photonic crystal waveguide of the same length.
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