Share Email Print
cover

Proceedings Paper

Shape measurement of microscopic object by using digital lateral shearing holography
Author(s): Xiufa Song; Baoqun Zhao
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

A phase reconstruction method which is combined digital holography with digital lateral shearing interferometry has been analyzed and verified by computer simulation. The results show that one-dimensional phase unwrapping procedure must be applied to the original reconstructed phase field before lateral shearing. An effective method to eliminate the linear term of the shearogram automatically have been proposed and demonstrated. Moreover, the simulation results also show that the maximum of the difference between two adjacent pixels of the shearogram must be less than 2π in order to reconstruct phase map correctly. If the value is more than 2π, an adoptable method is padding zeros to the recorded hologram appropriately.

Paper Details

Date Published: 24 November 2009
PDF: 7 pages
Proc. SPIE 7513, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Process Technology, 751322 (24 November 2009); doi: 10.1117/12.838009
Show Author Affiliations
Xiufa Song, Hebei Univ. of Engineering (China)
Baoqun Zhao, Hebei Univ. of Engineering (China)


Published in SPIE Proceedings Vol. 7513:
2009 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Process Technology
Toru Yoshizawa; Ping Wei; Jesse Zheng, Editor(s)

© SPIE. Terms of Use
Back to Top