Journal
OPTICS LETTERS
Volume 37, Issue 23, Pages 4850-4852Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.37.004850
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- Office of Naval Research Global (ONRG) under Naval International Cooperative Opportunities (NICOP) [N00014-09-1-1013]
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A modified Luneburg lens based on Hamiltonian optical transformation with planar feeds is proposed in this Letter. The lens, made of conventional all-dielectric materials, does not have any kind of anisotropy. Therefore, in theory, its bandwidth of operation has no upper frequency limitations in contrast with recent designs utilizing metamaterials. Results for wide-angle radiation and broadband operation are presented. (C) 2012 Optical Society of America
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