High-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisation.

  title={High-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisation.},
  author={D. Bowman and T. Harte and V. Chardonnet and C. de Groot and S. Denny and G. Le Goc and M. Anderson and P. Ireland and D. Cassettari and G. D. Bruce},
  journal={Optics express},
  volume={25 10},
  • D. Bowman, T. Harte, +7 authors G. D. Bruce
  • Published 2017
  • Physics, Medicine
  • Optics express
  • We demonstrate simultaneous control of both the phase and amplitude of light using a conjugate gradient minimisation-based hologram calculation technique and a single phase-only spatial light modulator (SLM). A cost function, which incorporates the inner product of the light field with a chosen target field within a defined measure region, is efficiently minimised to create high fidelity patterns in the Fourier plane of the SLM. A fidelity of F = 0.999997 is achieved for a pattern resembling an… CONTINUE READING
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