Dispersion engineering for 3D subwavelength imaging using photonic crystals

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dc.contributor.author Prather, Dennis
dc.contributor.author Lu, Zhaolin
dc.contributor.author Shi, Shouyuan
dc.contributor.author Schuetz, Christopher
dc.date.accessioned 2010-02-03T19:38:18Z
dc.date.available 2010-02-03T19:38:18Z
dc.date.issued 2006-01-03
dc.identifier.citation Proceedings of the SPIE Conference on Photonic Crystal Materials and Devices IV, vol. 6128, January 3, 2006 en_US
dc.identifier.uri http://hdl.handle.net/1850/11345
dc.description.abstract We experimentally demonstrate subwavelength resolution imaging at microwave frequencies by a three-dimensional (3D) photonic crystal flat lens using full 3D negative refraction. The flat lens is made of a body-centered cubic photonic crystal (PhC) whose dispersion at the third band results in group velocity opposite to phase velocity for electromagnetic waves. The photonic crystal was fabricated in a layer-by-layer process. Two different sources (monopole and pinhole) were used as imaged objects and a monopole detector was employed for detection in the image region. By scanning the detector, we obtained the images of the pinhole and monopole sources, separately. The image of the pinhole sources had subwavelength feature size in all three dimensions, which predicts a 3D imaging capability of the flat lenses. An image of two pinhole sources with subwavelength spacing showed two resolved spots, which further verified subwavelength resolution. en_US
dc.language.iso en_US en_US
dc.publisher SPIE en_US
dc.relation.ispartofseries vol. 6128 en_US
dc.subject Dispersion engineering en_US
dc.subject Left-handed material en_US
dc.subject Microwave imaging en_US
dc.subject Negative refraction en_US
dc.subject Photonic crystal en_US
dc.subject Super-resolution en_US
dc.title Dispersion engineering for 3D subwavelength imaging using photonic crystals en_US
dc.type Proceedings en_US

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