研究目的
Investigating the manipulation of wavefronts using polarization-dependent metasurfaces in the terahertz frequency band.
研究成果
The paper successfully demonstrates wave manipulation of reflection and transmission directions at THz frequencies using metasurfaces, with excellent agreement between simulations and measurements. The polarization-dependent characteristics of the proposed metasurfaces allow for arbitrary combinations of wavefront types with different polarized incidences, offering more freedoms for improving THz communication and imaging systems.
研究不足
The study is limited to specific frequencies (1THz and 0.25 THz) and may not cover the full potential applications of THz technology. The fabrication techniques and materials used may also impose constraints on the scalability and adaptability of the proposed metasurfaces.
1：Experimental Design and Method Selection:
The study employs two types of metasurfaces for wavefront manipulation, one operating at 1THz for transmitting wavefronts and another cascaded metasurface for controlling both reflected and transmitted wavefronts at
2：25 THz. Sample Selection and Data Sources:
The metasurfaces are fabricated using micromachining and PCB technology, with materials including BCB substrate and Duroid 5880 substrates.
3：List of Experimental Equipment and Materials:
Includes a four-layered Phoenix element for dual-beam transmission and a four-layered element with metal layers supported by substrates separated by an air gap.
4：Experimental Procedures and Operational Workflow:
Describes the fabrication process, measurement of dielectric properties, and comparison of simulated and measured radiation patterns.
5：Data Analysis Methods:
Involves comparing simulated and measured radiation patterns to validate the wavefront manipulation capabilities.
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