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 Concept Videos

Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Aliasing01:18

Aliasing

Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original signal...

You might also read

Related Articles

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

Sort by
Same author

[Analysis of risk factors influencing the effectiveness of conservative treatment for orbital complications of acute sinusitis].

Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery·2025
Same author

Arthroscopic Treatment of Popliteus Tendinitis Using the Accessory Portal.

Frontiers in surgery·2022
Same author

[Safety and efficacy of transarterial embolization combined with octreotide LAR on reducing tumor burden for neuroendocrine tumor liver metastasis].

Zhonghua yi xue za zhi·2019
Same author

High tetramethylpyrazine production by the endophytic bacterial Bacillus subtilis isolated from the traditional medicinal plant Ligusticum chuanxiong Hort.

AMB Express·2018
Same author

High toxicity of Bi(OH)<sub>3</sub> and α-Bi<sub>2</sub>O<sub>3</sub> nanoparticles towards malignant 9L and MCF-7 cells.

Materials science & engineering. C, Materials for biological applications·2018
Same author

An Approach to Combining Results From Multiple Methods Motivated by the ISO GUM.

Journal of research of the National Institute of Standards and Technology·2016

Related Experiment Video

Updated: Jun 13, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Real-time screen-aided multiple-image optical holographic matched-filter correlator.

H K Liu1, J G Duthie

  • 1University of Alabama, Department of Electrical Engineering, University, Alabama 35486, USA.

Applied Optics
|April 17, 2010
PubMed
Summary

Researchers explored multiplex holographic filtering using contact screens in real-time optical correlators. Dichromated gelatin phase screens offer improved efficiency over density-type screens for optical processing applications.

More Related Videos

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)
12:22

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)

Published on: August 4, 2018

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

Related Experiment Videos

Last Updated: Jun 13, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)
12:22

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)

Published on: August 4, 2018

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

Area of Science:

  • Optics
  • Information Processing
  • Materials Science

Background:

  • Multiplex holographic filtering is crucial for advanced optical processing.
  • Real-time coherent optical correlators require efficient filtering components.
  • Contact screens offer a method for implementing holographic filters.

Purpose of the Study:

  • To present the principle and experimental results of using contact screens for multiplex holographic filtering.
  • To describe the design and fabrication of 1-D and 2-D gray density screens and 2-D dichromated gelatin phase screens.
  • To evaluate the efficiency and performance of these screens in a real-time coherent optical correlator.

Main Methods:

  • Fabrication of 1-D and 2-D gray density contact screens.
  • Fabrication of 2-D dichromated gelatin phase screens.
  • Experimental application of screens in a real-time coherent optical correlator for multiplex holographic filtering.

Main Results:

  • 2-D density-type screens produced a 5x5 array of spectrum islands but suffered from low light efficiency.
  • Dichromated gelatin phase screens were developed to overcome the efficiency limitations of density-type screens.
  • A functional phase screen demonstrated reasonable efficiency for multiplex holographic filtering in the real-time correlator.

Conclusions:

  • Dichromated gelatin phase screens are a viable, more efficient alternative to density-type screens for multiplex holographic filtering.
  • Despite fabrication challenges, phase screens show promise for enhancing real-time optical correlator performance.
  • The study validates the application of contact screens for effective multiplex holographic filtering in optical processors.