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Title: Replication and characterization of the compound eye of a fruit fly for imaging purpose

Abstract

In this work, we report the replication and characterization of the compound eye of a fruit fly for imaging purpose. In the replication, soft lithography method was employed to replicate the compound eye of a fruit fly into a UV-curable polymer. The method was demonstrated to be effective and the compound eye is replicated into the polymer (NOA78) where each ommatidium has a diameter of about 30 μm and a sag height of about 7 μm. To characterize its optical property, the point spread function of the compound eye was tested and a NA of 0.386 has been obtained for the replicated polymeric ommatidium. Comparing with the NA of a real fruit fly ommatidium which was measured to be about 0.212, the replicated polymeric ommatidium has a much larger NA due to the refractive index of NOA78 is much higher than that of the material used to form the real fruit fly ommatidium. Furthermore, the replicated compound eye was used to image a photomask patterned with grating structures to test its imaging property. It is shown that the grating with a line width of 20 μm can be clearly imaged. The image of the grating formed by the replicated compound eye was shrunkmore » by about 10 times and therefore a line width of about 2.2 μm in the image plane has been obtained, which is close to the diffraction limited resolution calculated through the measured NA. In summary, the replication method demonstrated is effective and the replicated compound eye has the great potential in optical imaging.« less

Authors:
 [1];  [2]; ; ; ; ;  [1];  [3]
  1. State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, No. 3888, Dongnanhu Road, Changchun, Jilin (China)
  2. (China)
  3. Insititue of Micro and Nano Optics, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060 (China)
Publication Date:
OSTI Identifier:
22350869
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 14; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPARATIVE EVALUATIONS; DIFFRACTION; GRATINGS; IMAGES; POLYMERS; REFRACTIVE INDEX; RESOLUTION

Citation Formats

Li, Hefu, University of Chinese Academy of Sciences, Beijing 10039, Gong, Xianwei, Ni, Qiliang, Zhao, Jingli, Zhang, Hongsheng, Wang, Taisheng, and Yu, Weixing, E-mail: yuwx@szu.edu.cn. Replication and characterization of the compound eye of a fruit fly for imaging purpose. United States: N. p., 2014. Web. doi:10.1063/1.4898060.
Li, Hefu, University of Chinese Academy of Sciences, Beijing 10039, Gong, Xianwei, Ni, Qiliang, Zhao, Jingli, Zhang, Hongsheng, Wang, Taisheng, & Yu, Weixing, E-mail: yuwx@szu.edu.cn. Replication and characterization of the compound eye of a fruit fly for imaging purpose. United States. doi:10.1063/1.4898060.
Li, Hefu, University of Chinese Academy of Sciences, Beijing 10039, Gong, Xianwei, Ni, Qiliang, Zhao, Jingli, Zhang, Hongsheng, Wang, Taisheng, and Yu, Weixing, E-mail: yuwx@szu.edu.cn. Mon . "Replication and characterization of the compound eye of a fruit fly for imaging purpose". United States. doi:10.1063/1.4898060.
@article{osti_22350869,
title = {Replication and characterization of the compound eye of a fruit fly for imaging purpose},
author = {Li, Hefu and University of Chinese Academy of Sciences, Beijing 10039 and Gong, Xianwei and Ni, Qiliang and Zhao, Jingli and Zhang, Hongsheng and Wang, Taisheng and Yu, Weixing, E-mail: yuwx@szu.edu.cn},
abstractNote = {In this work, we report the replication and characterization of the compound eye of a fruit fly for imaging purpose. In the replication, soft lithography method was employed to replicate the compound eye of a fruit fly into a UV-curable polymer. The method was demonstrated to be effective and the compound eye is replicated into the polymer (NOA78) where each ommatidium has a diameter of about 30 μm and a sag height of about 7 μm. To characterize its optical property, the point spread function of the compound eye was tested and a NA of 0.386 has been obtained for the replicated polymeric ommatidium. Comparing with the NA of a real fruit fly ommatidium which was measured to be about 0.212, the replicated polymeric ommatidium has a much larger NA due to the refractive index of NOA78 is much higher than that of the material used to form the real fruit fly ommatidium. Furthermore, the replicated compound eye was used to image a photomask patterned with grating structures to test its imaging property. It is shown that the grating with a line width of 20 μm can be clearly imaged. The image of the grating formed by the replicated compound eye was shrunk by about 10 times and therefore a line width of about 2.2 μm in the image plane has been obtained, which is close to the diffraction limited resolution calculated through the measured NA. In summary, the replication method demonstrated is effective and the replicated compound eye has the great potential in optical imaging.},
doi = {10.1063/1.4898060},
journal = {Applied Physics Letters},
number = 14,
volume = 105,
place = {United States},
year = {Mon Oct 06 00:00:00 EDT 2014},
month = {Mon Oct 06 00:00:00 EDT 2014}
}