Wide-angle infrared absorber based on a negative-index plasmonic metamaterial
| Autor: | Gennady Shvets, Yoav Avitzour, Yaroslav A. Urzhumov |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Materials science
business.industry Infrared FOS: Physical sciences Physics::Optics Metamaterial 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Plasmonic metamaterials Electronic Optical and Magnetic Materials 010309 optics Optics 0103 physical sciences Thermal Metamaterial absorber Optoelectronics 0210 nano-technology Anisotropy business Absorption (electromagnetic radiation) Plasmon Physics - Optics Optics (physics.optics) |
| Zdroj: | Physical Review B. 79 |
| ISSN: | 1550-235X 1098-0121 |
| Popis: | A metamaterials-based approach to making a wide-angle absorber of infrared radiation is described. The technique is based on an anisotropic Perfectly Impedance Matched Negative Index Material (PIMNIM). It is shown analytically that a sub-wavelength in all three dimensions PIMNIM enables absorption of close to 100% for incidence angles up to $45\deg$ to the normal. A specific implementation of such frequency-tunable PIMNIM based on plasmonic metamaterials is presented. Applications to infrared imaging and coherent thermal sources are described. Comment: To be published in Phys. Rev. B |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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