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Autofocus by Lissajous scanning in time reversal optical scanning holography

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【作者】 刘洁； 欧海燕； 王华； 彭麟； 邵维；

【Author】 Jie Liu;Haiyan Ou;Hua Wang;Lin Peng;Wei Shao;Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China;School of Physics, University of Electronic Science and Technology of China;Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology;

【通讯作者】 欧海燕;

【机构】 Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China； School of Physics, University of Electronic Science and Technology of China； Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology；

【摘要】 In this Letter, an autofocusing method in optical scanning holography(OSH) system is proposed. By introducing Lissajous scanning into multiple signal classification(MUSIC) method in time-reversal(TR) OSH, the axial locations of the targets can be retrieved with better resolution and the peak prominence increases from 0.21 to 0.34. The feasibility of this method is confirmed by simulation as well as experiment.

【Abstract】 In this Letter, an autofocusing method in optical scanning holography(OSH) system is proposed. By introducing Lissajous scanning into multiple signal classification(MUSIC) method in time-reversal(TR) OSH, the axial locations of the targets can be retrieved with better resolution and the peak prominence increases from 0.21 to 0.34. The feasibility of this method is confirmed by simulation as well as experiment.

【关键词】 digital holography； Lissajous scanning； image reconstruction； axial localization；
【Key words】 digital holography； Lissajous scanning； image reconstruction； axial localization；
【基金】 supported by the 2020 Open Foundation of Key Laboratory of Cognitive Radio and Information Processing, Ministry of Education (Guilin University of Electronic Technology) (No. CRKL200201)
  • 【文献出处】 Chinese Optics Letters ,中国光学快报(英文版) , 编辑部邮箱 ,2024年08期
  • 【分类号】TN26;TP391.41
  • 【下载频次】5
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