AI Article Synopsis
- The proposed Y-splitter utilizes planar THz plasmonic metamaterials, featuring a straight waveguide and two branch waveguides designed with H-shaped structures.
- The system supports spoof surface plasmonic polaritons (SSPPs), which exhibit similar dispersion and mode characteristics across the waveguides, allowing for effective splitting of signals.
- Experimental tests at microwave frequencies confirmed that the Y-splitter functions as a 3dB power divider, suggesting potential applications in future plasmonic circuits for both microwave and THz technologies.
Article Abstract
We present an ultra-wideband Y-splitter based on planar THz plasmonic metamaterials, which consists of a straight waveguide with composite H-shaped structure and two branch waveguides with H-shaped structure. The spoof surface plasmonic polaritons (SSPPs) supported by the straight waveguide occupy the similar dispersion relation and mode characteristic to the ones confined by the branch waveguides. Attributing to these features, the two branch waveguides can equally separate the SSPPs wave propagating along the straight plasmonic waveguide to form a 3dB power divider in an ultra-wideband frequency range. To verify the functionality and performance of the proposed Y-splitter, we scaled down the working frequency to microwave and implemented microwave experiments. The tested device performances have clearly validated the functionality of our designs. It is believed to be applicable for future plasmonic circuit in microwave and THz ranges.
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| http://dx.doi.org/10.1364/OE.23.023270 | DOI Listing |
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