研究目的
Investigating the design and performance of a novel terahertz surface plasmon polariton waveguide crossing with minimized loss and suppressed crosstalk.
研究成果
The proposed plasmonic structure demonstrates low loss and good crosstalk suppression for both single-waveguide and multi-waveguide crossover systems within a wide frequency range. The structure's compact size, low loss, and crosstalk suppression capabilities make it suitable for future complex planar THz integrated systems.
研究不足
The study focuses on a specific frequency (0.55 THz) and may not cover the full spectrum of THz frequencies. The influence of the crossing angle on the structure performance is investigated, but other factors may also affect the performance.
1：Experimental Design and Method Selection:
The study involves the design, simulation, and experimental characterization of a THz spoof SPP waveguide crossing. The methodology includes optimizing the crossover structure to suppress crosstalk and minimize loss.
2：Sample Selection and Data Sources:
The waveguides are fabricated by optical lithography on a silicon substrate, followed by deep reactive ion etching and coating with a gold film.
3：List of Experimental Equipment and Materials:
A fiber-optic scanning near-field THz microscopy system operating at 1550 nm is used for experimental characterization.
4：Experimental Procedures and Operational Workflow:
The THz waves are focused on the excitation area of the sample, and the excited SPPs are detected by a near-field probe. The signals are scanned point by point with specific steps along the x and y directions.
5：Data Analysis Methods:
The measured loss is calculated as the total transmission loss of the scan area, and the crosstalk is estimated by measuring the powers at specific points for each cross-section.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
