Inverse Design of Terahertz Optical Power Splitters by the Particle Swarm Optimization Method
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- Title
- Inverse Design of Terahertz Optical Power Splitters by the Particle Swarm Optimization Method
- Authors
- HAN, HAEWOOK; GOUDARZI, KIYANOUSH; HANEOL, LEE; KIM, DO YOUNG; Ikmo, Park
- Date Issued
- 2023-03
- Publisher
- KOREAN INST ELECTROMAGNETIC ENGINEERING & SCIENCE
- Abstract
- This letter proposes 50:50 TE terahertz power splitters based on digitized metamaterials. The components are optimized using the parti-cle swarm optimization algorithm. The digitized metamaterials are formed as a silicon slab with circular air holes atop a silicon dioxide substrate. The insertion losses of optimized structures containing air holes with a radius of 9 mu m and air holes with different radii (9 mu m and 7 mu m) are less than 3.9 dB and 3.65 dB, respectively, over a frequency range of 0.87-1.09 THz. The footprint of the proposed devices is 400 mu m x 350 mu m. The devices have excellent characteristics, such as compactness, efficiency, all-dielectric properties, and compatibil-ity with CMOS fabrication technologies, and can become vital components of most terahertz-wave routing circuits.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/116163
- DOI
- 10.26866/jees.2023.2.r.153
- ISSN
- 2671-7255
- Article Type
- Article
- Citation
- Journal of Electromagnetic Engineering and Science, vol. 23, no. 2, page. 139 - 144, 2023-03
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- There are no files associated with this item.
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