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Related Concept Videos

IR Spectrometers01:25

IR Spectrometers

There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...

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Related Experiment Video

Updated: Jun 13, 2026

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
09:04

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Published on: January 14, 2020

Linear recording of Fourier transform holograms using a pseudorandom diffuser.

Y Nakayama, M Kato

    Applied Optics
    |April 15, 2010
    PubMed
    Summary

    This study details recording Fourier transform holograms of 2-D objects using pseudorandom diffusers. Optimal recording conditions were identified and confirmed through simulation and experiment for improved holographic imaging.

    Area of Science:

    • Optics and Photonics
    • Holography
    • Image Processing

    Background:

    • Fourier transform holography enables 2-D object reconstruction.
    • Pseudorandom diffusers can be utilized in holographic recording.
    • Optimizing recording parameters is crucial for image fidelity.

    Purpose of the Study:

    • To describe the linear recording of Fourier transform holograms using pseudorandom diffusers.
    • To determine and validate the optimal recording conditions.
    • To investigate the impact of recording medium dynamic range on image reconstruction.

    Main Methods:

    • Linear recording of Fourier transform holograms.
    • Utilizing a pseudorandom diffuser for object beam modulation.
    • Estimating recording conditions based on reference-to-object beam intensity ratio and exposure energy.

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    Published on: February 8, 2014

    Related Experiment Videos

    Last Updated: Jun 13, 2026

    Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
    09:04

    Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

    Published on: January 14, 2020

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
    10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

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    10:16

    Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects

    Published on: February 8, 2014

  • Computer simulation and experimental verification.

    • Main Results:

    • Identified key recording parameters: intensity ratio and exposure energy.
    • Validated the estimation process for recording conditions.
    • Demonstrated the influence of the recording medium's dynamic range on reconstructed image quality.

    Conclusions:

    • The proposed method allows for effective linear recording of Fourier transform holograms.
    • Accurate estimation of recording conditions is vital for successful holographic reconstruction.
    • Dynamic range limitations of recording media affect the quality of reconstructed holographic images.