Full phase and amplitude control in computer-generated holography.

  title={Full phase and amplitude control in computer-generated holography.},
  author={Markus Fratz and Peer Fischer and Dominik M. Giel},
  journal={Optics letters},
  volume={34 23},
We report what we believe to be the first realization of a computer-generated complex-valued hologram recorded in a single film of photoactive polymer. Complex-valued holograms give rise to a diffracted optical field with control over its amplitude and phase. The holograms are generated by a one-step direct laser writing process in which a spatial light modulator (SLM) is imaged onto a polymer film. Temporal modulation of the SLM during exposure controls both the strength of the induced… 

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