Two-dimensional Fibonacci grating for far-field super-resolution imaging

被引：0
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作者：
Kedi Wu
Guo Ping Wang
机构：
[1] College of Electronic Science and Technology and Guangdong Provincial Key Laboratory of Optoelectronic Micro/Nano Optomechatronics Engineering,
[2] Shenzhen University,undefined
来源：
Scientific Reports | / 6卷
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摘要：
A two-dimensional (2D) Fibonacci grating is used to transform evanescent waves into propagating waves for far-field super-resolution imaging. By detecting far-field intensity distributions of light field through objects in front of the 2D Fibonacci grating in free space at once, we can retrieve the image of objects with beyond λ/7 spatial resolution. We also find that the coherent illumination case can give a better resolution than incoherent illumination case by such 2D grating-assisted imaging system. The analytical results are verified by numerical simulation.
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