Wave front reconstruction by means of phase-shifting digital in-line holography

Songcan Lai, Brian King, Mark A. Neifeld

Research output: Contribution to journalArticlepeer-review

129 Scopus citations


A method of recording four quadrature-reference-wave-holograms by CCD and reconstructing the object wave front by numerical calculation is presented in this paper. The terms of direct transmitting, auto-correlation and conjugate wave in the four reconstructing waves are cancelled out and only the original object wave is left after overlapping. Reconstructed images are obtained by calculating through Fresnel-Kirchhoff integral on computers. The influences of the noise of CCD and the phase-shifting error of phase-shift elements to the quality of the reconstructed images are analyzed. Experimental results show that pure original object wave or the conjugate object wave can be reconstructed in in-line holograms using the method in this paper.

Original languageEnglish (US)
Pages (from-to)155-160
Number of pages6
JournalOptics Communications
Issue number1-6
StatePublished - Jan 2000
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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