Research Papers

Superlensing effect without obvious negative refraction

[+] Author Affiliations
Pi-Gang Luan, Kao-Der Chang

Institute of Optical Sciences

J. Nanophoton. 1(1), 013518 (July 12, 2007). doi:10.1117/1.2768384
History: Received October 24, 2006; Revised July 10, 2007; Accepted July 11, 2007; July 12, 2007; Online July 12, 2007
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Abstract

The superlensing phenomenon of light in photonic-crystal lens-like structures of finite sizes was studied. The wave field was calculated by using the multiple scattering method. The influences of the shapes and interior structures of the lens-like devices on their imaging characteristics were carefully examined numerically. The numerical results revealed that negative refraction is not directly related to the subwavelength imaging phenomenon. For the photonic crystal slab of square-lattice type, superlensing effect was found to be essentially a near field effect.

© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Pi-Gang Luan and Kao-Der Chang
"Superlensing effect without obvious negative refraction", J. Nanophoton. 1(1), 013518 (July 12, 2007). ; http://dx.doi.org/10.1117/1.2768384


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