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Optical Engineering

Focusing properties of two-dimensional photonic quasicrystal flat lens at different object distances
Author(s): Jianjun Liu; Baojun Zuo; Shouqian Chen; Haili Hu; Haosu Xiao; Wang Zhang; Zhigang Fan; Hao Guo; Xiong Zhang
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Paper Abstract

We report the object-distance effect on the focusing properties of a two-dimensional (2-D), photonic quasicrystal (PQC) flat lens by numerical simulation. For the image power and image quality, the half-thickness of the flat lens is no longer the optimal object distance. The object-image distance is not always double the flat lens thickness, which is apparently different from a 2-D, periodic photonic crystal (PPC) flat lens and left-handed material (LHM) flat lens. With the point-light source located near half-thickness of the lens object distance, a 2-D PQC flat lens can achieve a perfect image in a certain range. With an appropriate object distance, a 2-D PQC flat lens is much better than a 2-D PPC flat lens in the aspect of imaging resolution. The results are beneficial to understand the focusing and imaging of a 2-D PQC flat lens.

Paper Details

Date Published: 6 July 2012
PDF: 6 pages
Opt. Eng. 51(7) 074005 doi: 10.1117/1.OE.51.7.074005
Published in: Optical Engineering Volume 51, Issue 7
Show Author Affiliations
Jianjun Liu, Harbin Institute of Technology (China)
Baojun Zuo, Harbin Institute of Technology (China)
Shouqian Chen, Harbin Institute of Technology (China)
Haili Hu, Harbin Institute of Technology (China)
Haosu Xiao, Harbin Institute of Technology (China)
Wang Zhang, Harbin Institute of Technology (China)
Zhigang Fan, Harbin Institute of Technology (China)
Hao Guo, Southeast Univ. (China)
Xiong Zhang, Southeast Univ. (China)

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