Simulation and testing of a graded negative index of refraction lens
A gradient index (GRIN) lens using a negative index of refraction material (NIM) has been designed and tested. The GRIN lens was fabricated using a NIM slab with a variable index of refraction perpendicular to the propagation direction. Ray tracing calculations based on the isotropic Eikonal equatio...
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| Veröffentlicht in: | Applied physics letters 2005-08, Vol.87 (9), p.091114-091114-3 |
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| Sprache: | eng |
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| container_end_page | 091114-3 |
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| container_issue | 9 |
| container_start_page | 091114 |
| container_title | Applied physics letters |
| container_volume | 87 |
| creator | Greegor, R. B. Parazzoli, C. G. Nielsen, J. A. Thompson, M. A. Tanielian, M. H. Smith, D. R. |
| description | A gradient index (GRIN) lens using a negative index of refraction material (NIM) has been designed and tested. The GRIN lens was fabricated using a NIM slab with a variable index of refraction perpendicular to the propagation direction. Ray tracing calculations based on the isotropic Eikonal equation determined the index of refraction gradient required for a given focal length. An electromagnetic code was then used to design the required ring and wire unit cells. Finally, the index of refraction was approximated using ten discrete steps in an effective medium simulation for the GRIN lens that agreed with the experimental measurements. |
| doi_str_mv | 10.1063/1.2037202 |
| format | Article |
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| ispartof | Applied physics letters, 2005-08, Vol.87 (9), p.091114-091114-3 |
| issn | 0003-6951 1077-3118 |
| language | eng |
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| source | AIP Journals Complete; AIP Digital Archive |
| title | Simulation and testing of a graded negative index of refraction lens |
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