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13 April 2005 Photonic crystal planar lens working at low frequencies
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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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zhaolin Lu, Shouyuan Shi, Christopher A. Schuetz, Chunchen Lin, Caihua Chen, Ahmed S. Sharkawy, and Dennis W. Prather "Photonic crystal planar lens working at low frequencies", Proc. SPIE 5733, Photonic Crystal Materials and Devices III, (13 April 2005);


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