Access to eBooks is limited to institutions that have purchased
or currently subscribe to the SPIE eBooks program. eBooks are not
available via an individual subscription. SPIE books (print and
digital) may be purchased individually on
Contact your librarian to recommend SPIE eBooks for your organization.
Chapter 2: Analog Holography, Holographic Interferometry, and Phase-Shifting Holographic Interferometry
Because the objective of holography is to perform phase retrieval from a recorded hologram, this chapter discusses how this can be achieved using analog holographic techniques. Conventional analog holography entails physical re-illumination of the hologram of the object with a reading beam and finding the 3D real or virtual image. Numerical phase retrieval methods are also addressed that unwrap the computed (and thus always modulo 2p) phase to determine the exact phase change of the image. In holographic interferometry and phase-shifting holographic interferometry, the phases from different states of an object can be compared to yield information about the 3D deformation of the object.
Online access to SPIE eBooks is limited to subscribing institutions.