Experimental verification of a broadband asymmetric transmission metamaterial in the terahertz region
| Autor: | Xiang Tao, Fanyi Liu, Jun Yang, Limei Qi |
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| Rok vydání: | 2020 |
| Předmět: |
Imagination
Materials science Linear polarization business.industry Terahertz radiation General Chemical Engineering media_common.quotation_subject Metamaterial 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Polarization (waves) 01 natural sciences 010309 optics Optics Electric field 0103 physical sciences Broadband Transmission coefficient 0210 nano-technology business media_common |
| Zdroj: | RSC Advances. 10:6179-6184 |
| ISSN: | 2046-2069 |
| Popis: | In this work, a broadband terahertz asymmetric transmission metamaterial is experimentally demonstrated for a linearly polarized wave. The measured transmission coefficient Tyx is larger than 0.6 from 0.55 to 0.82 THz, and reaches a peak value of 0.714 at 0.62 THz, while the transmission coefficient Txy is lower than 0.2 from 0.4 to 0.9 THz. The calculated asymmetric transmission parameter of the measurement ranges from 0.53 to 0.84 THz for magnitudes over 0.4. The peak value reached 0.65 at the frequency of 0.78 THz. The physical mechanism of the polarization conversion was also analyzed from the distributions of the surface currents and electric fields. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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