Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Computer-generated holograms to produce high-density intensity patterns.

Y Takaki1, J Hojo

  • 1Department of Applied Physics, College of Humanities and Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan. takaki@chs.nihon-u.ac.jp

Applied Optics
|March 6, 2008
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

One-Year <i>In Situ</i> Incubation of Pyrite at the Deep Seafloor and Its Microbiological and Biogeochemical Characterizations.

Applied and environmental microbiology·2021
Same author

Proton pump inhibitor after endoscopic resection for esophageal squamous cell cancer: multicenter prospective randomized controlled trial.

Journal of gastroenterology·2015
Same author

Vaginal cuff dehiscence after total laparoscopic hysterectomy: examination on 677 cases.

Asian journal of endoscopic surgery·2012
Same author

Esophageal tuberculosis: a microgranuloma visualized by narrow-band imaging magnifying endoscopy.

Endoscopy·2011
Same author

Reconfigurable lens with an electro-optical learning system.

Applied optics·2010
Same author

Incoherent pattern detection using a liquid-crystal active lens.

Applied optics·2010
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

Computer-generated holograms can now control image intensity at twice the resolution. By manipulating sampling point amplitudes, researchers achieved higher-density intensity patterns in reconstructed holographic images.

Area of Science:

  • Optics and Photonics
  • Digital Holography
  • Image Reconstruction

Background:

  • Computer-generated holograms (CGHs) typically reconstruct images with a resolution matching their cell count (N x N).
  • The point-spread function in CGHs limits intensity control to discrete sampling points.
  • Interference between sampling points influences intensity at locations between these points.

Purpose of the Study:

  • To investigate methods for enhancing the resolution and control of reconstructed images from CGHs.
  • To explore the potential of manipulating complex amplitudes for finer intensity control.
  • To demonstrate the generation of high-density intensity patterns.

Main Methods:

  • Utilizing a computer-generated hologram with N x N resolution cells.

Related Experiment Videos

  • Analyzing the point-spread function and the role of sampling point pitch.
  • Controlling the complex amplitudes of individual sampling points.
  • Performing preliminary experiments to generate high-density patterns.

    • Main Results:

    • Demonstrated that controlling complex amplitudes allows intensity modulation at points between sampling points.
    • Achieved control over the reconstructed image intensity at 2N x 2N points, effectively doubling the resolution.
    • Successfully generated high-density intensity patterns in preliminary experiments.

    Conclusions:

    • Complex amplitude control offers a novel method to enhance the effective resolution of CGH reconstructions.
    • This technique allows for precise control over image intensity beyond the native sampling points.
    • The findings pave the way for generating more detailed and higher-resolution holographic images.