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Wavefront Reconstruction

  • Dennis Gabor

Abstract

A reference beam with complex amplitude A (x,y,z) e-i ω t and an object beam coherent with it, with amplitude B(x,y,z)e-i ω t fall simultaneously on a thin photographic emulsion in the plane z = 0. We can operate with “scalar light” so long as the polarizations are the same, i.e. if the electric vectors in the two beams are parallel or nearly parallel. If the angle of the two electric vectors is considerable, a correction must be made, because the amplitudes are added vectorially. The photographic plate (or any other energy detector,) completely ignores the phase factor and records only the resultant energy, which is proportional to the joint intensity
$$I = (A + B)(A^* + B^* ) = AA^* + BB^* + (AB^* + A^* B)$$
(1)
.

Keywords

Reference Beam Interference Term Electric Vector Object Beam Holographic Screen 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1972

Authors and Affiliations

  • Dennis Gabor
    • 1
  1. 1.Imperial College of Science and TechnologyLondonUK

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