Terahertz metamaterial to demonstrate extremely wide range of effective refractive indices in the 0.3-THz band
| Autor: | Satoshi Kondoh, Takehito Suzuki, Makoto Shijo, Tatsuya Sato, Kazuhisa Watai, Koki Ishihara |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Range (particle radiation) Materials science business.industry High-refractive-index polymer Terahertz radiation Physics::Optics X-ray optics Metamaterial Negative index metamaterials 01 natural sciences Electromagnetic radiation 010309 optics Optics 0103 physical sciences Optoelectronics business Refractive index |
| Zdroj: | 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. |
| DOI: | 10.1109/apusncursinrsm.2017.8072687 |
| Popis: | Research on terahertz technology has progressed to offer game changing industrial applications. However, high-performance optical elements that manipulate electromagnetic waves in the terahertz waveband remain unrealized. Metamaterials can provide unprecedented refractive indices and offer a possible solution to the lack of optical elements. Here, we demonstrate simple control of parameters for identical kinds of meta-atoms allowing simple design of an extremely wide range of refractive indices including the high refractive index of 12.3, a refractive index near zero of −0.37, and a negative refractive index of −5.4 in the 0.3-THz band. |
| Databáze: | OpenAIRE |
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