Simultaneous measurement of displacement and its spatial derivatives with a digital holographic method

Cheng Liu

doi:10.1117/1.1624077

1 December 2003 Simultaneous measurement of displacement and its spatial derivatives with a digital holographic method

Cheng Liu

Author Affiliations +

Optical Engineering, Vol. 42, Issue 12, (December 2003). https://doi.org/10.1117/1.1624077

Abstract

A digital holographic method for simultaneous measurement of the displacement and its spatial derivatives is described. In this method, two holograms are first recorded in the undeformed and deformed states of the specimen; then two object waves related to the two states of the specimen are numerically reconstructed. The phase maps of the displacement and its derivatives can be generated simultaneously from these two reconstructed object waves with a numerical method. This proposed method offers a simple experimental setup, flexibility in handing the data, and high quality of phase maps.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Cheng Liu "Simultaneous measurement of displacement and its spatial derivatives with a digital holographic method," Optical Engineering 42(12), (1 December 2003). https://doi.org/10.1117/1.1624077

Published: 1 December 2003

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