Ray-Tracing Approach to Computer-Generated Holography for Precision 3D Beam Patterns

  • Shih-Ming Chang
  • Drew A. Pommet
  • Michael A. Fiddy
  • Freeman C. Lin


Computer-generated holography [1, 2, 3] is a well known way to produce holograms. It is widely used in integrated optics [4], for holographic components [5, 6], in medical detection [7], for image-enhancement in electronic microscopes [8], and for three-dimensional displays [9, 10]. Most of the computer-generated holograms (CGHs) described in existing papers are Fourier holograms which are generated using the FFT (Fast Fourier Transform) [11, 12]. In this paper, a method which is based on ray tracing is described and demonstrated. This method can encode and reconstruct not only two-dimensional but also three-dimensional objects.


Reference Beam Efficient Cell Reference Wave Optical Path Difference Object Beam 
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

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Shih-Ming Chang
    • 1
  • Drew A. Pommet
    • 2
  • Michael A. Fiddy
    • 2
    • 3
  • Freeman C. Lin
    • 2
    • 3
  1. 1.Department of Physics and Applied PhysicsUniversity of Massachusetts - LowellLowellUSA
  2. 2.Department of Electrical EngineeringUniversity of Massachusetts — LowellLowellUSA
  3. 3.Wavicle TechnologiesLowellUSA

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