Optically active Babinet planar metamaterial film for terahertz polarization manipulation
| Autor: | Peter Torben Tang, Radu Malureanu, Maksim Zalkovskij, Peter Uhd Jepsen, Sergei V. Zhukovsky, Andrey Novitsky, Dmitry N. Chigrin, Christian Kremers, Andrei V. Lavrinenko |
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| Rok vydání: | 2013 |
| Předmět: |
Fabrication
Materials science business.industry Terahertz radiation Physics::Optics Metamaterial 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Polarization (waves) 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Resonator Optics Planar 0103 physical sciences Optoelectronics 0210 nano-technology business Anisotropy Spectroscopy |
| Zdroj: | Laser & Photonics Reviews. 7:810-817 |
| ISSN: | 1863-8880 |
| Popis: | A planar Babinet-inverted dimer metamaterial possessing strong optical activity is proposed and characterized. An original fabrication method to produce large area (up to several cm2) freely suspended flexible metallic membranes is implemented to fabricate the metamaterial. Its optical properties are characterized by terahertz time-domain spectroscopy, revealing anisotropic transmission with high optical activity. A simple coupled resonator model is applied to explain the principal optical features of the dimers, with predictive power of positions and number of resonances through a parametrical model. The model is validated for correct polarization-dependent quantitative results on the optical activity in transmission spectra. The fabrication method presented in this work as well as the slit dimer design has great potential for exploitation in terahertz optics. |
| Databáze: | OpenAIRE |
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