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Proceedings Paper

Photonic crystal planar lens working at low frequencies
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Paper Abstract

In this paper, we demonstrate the design and fabrication of a planar lens based on the dispersion property of a photonic crystal. When a photonic crystal is illuminated with a low frequency within its dispersion diagram it behaves very similar to an isotropic material, whose resultant index is kept a constant, and is determined by the ratio of high index material and low index material. To validate our design, we performed the experiment in millimeter regime, where the photonic crystal lens was fabricated using a CNC micro-milling machine, and a millimeter wave imaging system was built based on a vector network analyzer. For the lens, we have observed its ability to collimate an incident point source both in the amplitude and phase.

Paper Details

Date Published: 13 April 2005
PDF: 6 pages
Proc. SPIE 5733, Photonic Crystal Materials and Devices III, (13 April 2005); doi: 10.1117/12.589299
Show Author Affiliations
Zhaolin Lu, Univ. of Delaware (United States)
Shouyuan Shi, Univ. of Delaware (United States)
Christopher A. Schuetz, Univ. of Delaware (United States)
Chunchen Lin, Univ. of Delaware (United States)
Caihua Chen, Univ. of Delaware (United States)
Ahmed S. Sharkawy, Univ. of Delaware (United States)
Dennis W. Prather, Univ. of Delaware (United States)

Published in SPIE Proceedings Vol. 5733:
Photonic Crystal Materials and Devices III
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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