Noise and aliases in off-axis and phase-shifting holography.

نویسندگان

  • M Gross
  • M Atlan
  • E Absil
چکیده

We have compared the respective efficiencies of off-axis and phase-shifting holography in terms of noise and aliases removal. The comparison is made by analyzing holograms of a USAF target backlit with laser illumination, recorded with a charge-coupled device camera. We show that it is essential to remove the local oscillator beam noise, especially at low illumination levels.

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عنوان ژورنال:
  • Applied optics

دوره 47 11  شماره 

صفحات  -

تاریخ انتشار 2008