1 April 2002 Frequency analysis of digital holography
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A coherent optical imaging system consisting of recording a digital hologram by a CCD array and numerical reconstruction of the complex wave field in a computer is subjected to a frequency analysis. This analysis recognizes Fresnel and lensless Fourier transform holography; collimated and divergent reference waves; as well as the real image, the virtual image, and the dc term. The influences of finite sampling and the fill factor of the CCD pixels are examined. The impulse response of the system is a shifted Fraunhofer diffraction pattern of the aperture defined by the CCD. A fill factor below unity leads to a contrast decrease, which is quantitatively described in the modulation transfer function.
©(2002) Society of Photo-Optical Instrumentation Engineers (SPIE)
Thomas M. Kreis "Frequency analysis of digital holography," Optical Engineering 41(4), (1 April 2002). https://doi.org/10.1117/1.1458551
Published: 1 April 2002
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Cited by 107 scholarly publications.
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KEYWORDS
Digital holography

Charge-coupled devices

3D image reconstruction

Holograms

Fourier transforms

Holography

Modulation transfer functions

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