Negative refraction and imaging beyond the diffraction limit by a two-dimensional left-handed metamaterial
buir.contributor.author | Özbay, Ekmel | |
buir.contributor.author | Özbay, Ekmel | |
buir.contributor.orcid | Özbay, Ekmel|0000-0003-2953-1828 | |
dc.citation.epage | 115 | en_US |
dc.citation.issueNumber | 1 | en_US |
dc.citation.spage | 108 | en_US |
dc.citation.volumeNumber | 6 | en_US |
dc.contributor.author | Özbay, Ekmel | en_US |
dc.contributor.author | Aydin, K. | en_US |
dc.date.accessioned | 2016-02-08T10:09:31Z | |
dc.date.available | 2016-02-08T10:09:31Z | |
dc.date.issued | 2008 | en_US |
dc.department | Nanotechnology Research Center (NANOTAM) | en_US |
dc.department | Department of Physics | en_US |
dc.department | Department of Electrical and Electronics Engineering | en_US |
dc.department | Institute of Materials Science and Nanotechnology (UNAM) | en_US |
dc.description.abstract | We report our experimental results on two-dimensional left-handed metamaterials (LHM) exhibiting negative refraction and subwavelength imaging. Transmission and reflection spectra of LHM are studied and a left-handed transmission band is observed at the frequencies where both dielectric permittivity and magnetic permeability are negative. Impedance matching is verified both with the experiments and simulations. The two-dimensional LHM structure is verified to have a negative refractive index. We employed three different methods to observe negative refraction; refraction through prism-shaped LHM, beam shifting method, and phase shift experiments. We further demonstrated subwavelength imaging and resolution using LHM superlenses. The effect of thickness on the resolving power is investigated experimentally. | en_US |
dc.identifier.doi | 10.1016/j.photonics.2007.09.003 | en_US |
dc.identifier.eissn | 1569-4429 | |
dc.identifier.issn | 1569-4410 | |
dc.identifier.uri | http://hdl.handle.net/11693/23145 | |
dc.language.iso | English | en_US |
dc.publisher | Elsevier BV | en_US |
dc.relation.isversionof | http://doi.org/10.1016/j.photonics.2007.09.003 | en_US |
dc.source.title | Photonics and Nanostructures - Fundamentals and Applications | en_US |
dc.subject | Metamaterial | en_US |
dc.subject | Left-handed material | en_US |
dc.subject | Negative refraction | en_US |
dc.subject | Subwavelength imaging | en_US |
dc.subject | Superlens | en_US |
dc.title | Negative refraction and imaging beyond the diffraction limit by a two-dimensional left-handed metamaterial | en_US |
dc.type | Article | en_US |
relation.isAuthorOfPublication | 8c1d6866-696d-46a3-a77d-5da690629296 |
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