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 10 um, which is the limit by using this experimental arrangement.
© 2005 Chinese Optics Letters
Liyun Zhong, Yimo Zhang, Xiaoxu Lv, and Caojin Yuan, "The reconstruction of diffractive object digital hologram at a short distance," Chin. Opt. Lett. 2, 265-267 (2004)