The reconstruction of diffractive object digital hologramat a short distance |
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作者姓名: | 钟丽云 张以谟 吕晓旭 袁操今 |
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作者单位: | College of Precision Instrument and Opto-Electronic Engineering,Tianjin University,Tianjin 300072 Laser Research Institute,Kunming University of Science and Technology,Kunming 650051,College of Precision Instrument and Opto-Electronic Engineering,Tianjin University,Tianjin 300072,College of Precision Instrument and Opto-Electronic Engineering,Tianjin University,Tianjin 300072 Laser Research Institute,Kunming University of Science and Technology,Kunming 650051,Laser Research Institute,Kunming University of Science and Technology,Kunming 650051 |
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基金项目: | theNationalNaturalScienceFoundationofChina(No.60277032)
theNaturalScienceFoundationofYunnanProvinceofChina(No.2002F0030M). |
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摘 要: | By using a spherical wave as the reference wave, we recorded the in-line phase-shifting digital hologram of the 25th element of Chinese standard No. 3 resolution test pattern, and gave the corresponding numerical reconstructed results. Some problems concerning with the digital hologram recording and reconstruction of the diffractive object at a short distance are discussed. The experimental result shows that the resolution of the reconstructed image is better than 10μm, which is the limit by using this experimental arrangement.
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