In-line digital holographic interferometry

被引：61

作者：

Pedrini, G ^{[1
]}

Froning, P ^{[1
]}

Fessler, H ^{[1
]}

Tiziani, HJ ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Tech Opt, D-70569 Stuttgart, Germany

来源：

APPLIED OPTICS | 1998年 / 37卷 / 26期

关键词：

D O I：

10.1364/AO.37.006262

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An optical system based on in-line digital holography for the evaluation of deformations is described. In-line holograms are recorded on a CCD chip. The problem of overlapping twin images typical for the in-line arrangement is solved by digital reconstruction and filtering of the unwanted wave fronts. Two separate interferograms of an object under test in its undeformed and deformed states are recorded each on a CCD chip. The phases of the two wave fronts are obtained from the complex amplitudes of the digital reconstructed wave fronts, and the deformation is calculated from the phase differences. Experimental results are presented. (C) 1998 Optical Society of America

引用

页码：6262 / 6269

页数：8

共 9 条

[1] Particle size and position measurement with digital holography [J].