Dragonfly‐Eye‐Inspired Artificial Compound Eyes with Sophisticated Imaging |
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Authors: | Zefang Deng Feng Chen Qing Yang Hao Bian Guangqing Du Jiale Yong Chao Shan Xun Hou |
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Affiliation: | State Key Laboratory for Manufacturing System Engineering and Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, P. R. China |
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Abstract: | The natural compound eye is a striking imaging device with a wealth of fascinating optical features such as a wide field of view (FOV), low aberration, and high sensitivity. Dragonflies in particular possess large, sophisticated compound eyes that exhibit high resolving power and information‐processing capacity. Here, a large‐scale artificial compound eye inspired by the unique designs of natural counterparts is presented. The artificial compound eye is created by a high‐efficiency strategy that combines single‐pulse femtosecond laser wet etching with thermal embossing. These eyes have a macrobase diameter of 5 mm and ≈30 000 close‐packed ommatidia with an average diameter of 24.5 μm. Moreover, the optical properties of the artificial compound eyes are investigated; the results confirm that the eye demonstrates advanced imaging quality, an exceptionally wide FOV of up to 140°, and low aberration. |
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Keywords: | compound eyes femtosecond laser microfabrication optical materials optical structures |
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