6 July 2012 Focusing properties of two-dimensional photonic quasicrystal flat lens at different object distances
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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.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Jianjun Liu, Jianjun Liu, Baojun Zuo, Baojun Zuo, Shouqian Chen, Shouqian Chen, Haili Hu, Haili Hu, Haosu Xiao, Haosu Xiao, Wang Zhang, Wang Zhang, Zhigang Fan, Zhigang Fan, Hao Guo, Hao Guo, Xiong Zhang, Xiong Zhang, } "Focusing properties of two-dimensional photonic quasicrystal flat lens at different object distances," Optical Engineering 51(7), 074005 (6 July 2012). https://doi.org/10.1117/1.OE.51.7.074005 . Submission:
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