Principles of digital holographic interferometry

Thomas M. Kreis; Werner P. O. Jueptner; Juergen Geldmacher

doi:10.1117/12.312966

30 June 1998 Principles of digital holographic interferometry

Thomas M. Kreis, Werner P. O. Jueptner, Juergen Geldmacher

Proceedings Volume 3478, Laser Interferometry IX: Techniques and Analysis; (1998) https://doi.org/10.1117/12.312966
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Fresnel or Fraunhofer hologram s can be recorded by CCD arrays as long as the sampling theorem is fulfilled. The numerical reconstruction of the wavefields is performed either by the discrete finite Fresnel transform or by solving the diffraction integral using the convolution theorem. The availability of the digitally evaluated complex wavefield instead of only the intensity field in optical reconstruction allows the subtraction of the phase distributions belonging to two states of the object to yield the sign-correct interference phase distribution with high accuracy. A numerical compensation for excess motion as well as effective filtering of the interference phase modulo 2(pi) are feasible.

Citation Download Citation

Thomas M. Kreis, Werner P. O. Jueptner, and Juergen Geldmacher "Principles of digital holographic interferometry", Proc. SPIE 3478, Laser Interferometry IX: Techniques and Analysis, (30 June 1998); https://doi.org/10.1117/12.312966

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