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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Antosiewicz, T.J. Saj, W.M. Pniewski, J. Szoplik, T. |
| Copyright Year | 2005 |
| Description | Author affiliation: Warsaw Univ., Poland (Antosiewicz, T.J.; Saj, W.M.; Pniewski, J.; Szoplik, T.) |
| Abstract | A metamaterial with an electromagnetically active single unit composed of two parallel nanowires was recently proposed by Sarychev and his collaborators. One layer of the anisotropic metamaterial contains a randomly distributed set of oriented wires that cover 10% of the layer surface. It was noted that a multilayer structure of the metamaterial should exhibit macroscopic negative refraction. Here, in the computer refraction experiment we confirm that expectation. In FDTD simulations we analyze propagation of near infrared light through the metamaterial slab. We simulate performance of a single layer illuminated normally and of a few layers illuminated at a small angle. Electric field of the illuminating Gaussian beam lies in the plane of incidence that is parallel to the direction of oriented pairs of wires. For a small angle of incidence we calculate two characteristics: the attenuation versus wavelength and the lateral shift of beam on the plane-parallel slab versus wavelength. According to our model, negative refraction should be observed for a narrow range of wavelengths around 2.85 /spl mu/m. In simulations made for a single layer medium, negative refraction is observed for wavelengths /spl lambda/ from 1.55 to 2.1 /spl mu/m, with /spl Delta//spl lambda///spl lambda//spl ap/0.3. When the number of layers increases, the range of negatively refracted wavelengths becomes narrower. In the metamaterial slab composed of three layers attenuation of the Gaussian beam of wavelengths /spl lambda/=1.2-1.55 /spl mu/m and incident at 10/spl deg/ changes from -13 to -25 dB, respectively. |
| Sponsorship | Gov. of Catalonia Minist. of Univ., Res. and Inf. Soc. Telefonica i2cat Found. - Res. and Innovation in the Internet Area |
| Starting Page | 288 |
| Ending Page | 291 |
| File Size | 347487 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780392361 |
| DOI | 10.1109/ICTON.2005.1505806 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-07-07 |
| Publisher Place | Spain |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Metamaterials Nanowires Slabs Wires Optical refraction Computational modeling Attenuation Electromagnetic refraction Collaboration Anisotropic magnetoresistance |
| Content Type | Text |
| Resource Type | Article |
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