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

Spherical Coordinates01:23

Spherical Coordinates

12.1K
Spherical coordinate systems are preferred over Cartesian, polar, or cylindrical coordinates for systems with spherical symmetry. For example, to describe the surface of a sphere, Cartesian coordinates require all three coordinates. On the other hand, the spherical coordinate system requires only one parameter: the sphere's radius. As a result, the complicated mathematical calculations become simple. Spherical coordinates are used in science and engineering applications like electric and...
12.1K
Gauss's Law: Spherical Symmetry01:26

Gauss's Law: Spherical Symmetry

7.2K
A charge distribution has spherical symmetry if the density of charge depends only on the distance from a point in space and not on the direction. In other words, if the system is rotated, it doesn't look different. For instance, if a sphere of radius R is uniformly charged with charge density ρ0, then the distribution has spherical symmetry. On the other hand, if a sphere of radius R is charged so that the top half of the sphere has a uniform charge density ρ1 and the bottom half has...
7.2K
Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

9.3K
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...
9.3K
Gauss's Law: Cylindrical Symmetry01:20

Gauss's Law: Cylindrical Symmetry

7.3K
A charge distribution has cylindrical symmetry if the charge density depends only upon the distance from the axis of the cylinder and does not vary along the axis or with the direction about the axis. In other words, if a system varies if it is rotated around the axis or shifted along the axis, it does not have cylindrical symmetry. In real systems, we do not have infinite cylinders; however, if the cylindrical object is considerably longer than the radius from it that we are interested in,...
7.3K

You might also read

Related Articles

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

Sort by
Same author

Group multiple-image encoding and watermarking using coupled logistic maps and gyrator wavelet transform.

Journal of the Optical Society of America. A, Optics, image science, and vision·2015
Same author

Information authentication system using interference of two beams in gyrator transform domain.

Applied optics·2013
Same author

Security enhancement of color image cryptosystem by optical interference principle and spiral phase encoding.

Applied optics·2013
Same author

Color information cryptosystem based on optical superposition principle and phase-truncated gyrator transform.

Applied optics·2012
Same author

Color image security system using double random-structured phase encoding in gyrator transform domain.

Applied optics·2012
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

Related Experiment Video

Updated: Apr 22, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

9.4K

Optical interference-based multiple-image encryption using spherical wave illumination and gyrator transform.

Muhammad Rafiq Abuturab

    Applied Optics
    |October 17, 2014
    PubMed
    Summary
    This summary is machine-generated.

    A novel optical encryption method uses spherical waves and gyrator transforms to secure multiple images. This technique divides color images into components, encrypts them, and uses phase masks for robust data protection.

    More Related Videos

    Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
    06:25

    Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

    Published on: February 12, 2014

    7.8K
    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

    9.6K

    Related Experiment Videos

    Last Updated: Apr 22, 2026

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
    08:39

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

    Published on: January 28, 2019

    9.4K
    Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
    06:25

    Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

    Published on: February 12, 2014

    7.8K
    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

    9.6K

    Area of Science:

    • Optics and Photonics
    • Information Security
    • Digital Image Processing

    Background:

    • Optical interference-based methods offer unique advantages for image encryption.
    • Multiple-image encryption is crucial for secure data transmission and storage.
    • Gyrator transform and spherical wave illumination are advanced techniques in optical security.

    Purpose of the Study:

    • To propose a new optical interference-based multiple-image encryption system.
    • To enhance security layers through sensitive decryption keys and optoelectronic implementation.
    • To demonstrate the flexibility and effectiveness of the proposed encryption method.

    Main Methods:

    • Secret color images are decomposed into R, G, B components and encoded into phase-only component images.
    • Phase-only component images are combined and masked to form a complex image, from which two phase-only masks are derived.
    • Spherical wave illumination and gyrator transform are applied to the masks, followed by phase and amplitude truncation for encryption and key generation.

    Main Results:

    • Encrypted images are generated by phase truncation of the transformed images.
    • Decryption keys are constructed via amplitude truncation, incorporating sensitive parameters like gyrator transform angles and spherical wave properties.
    • Numerical simulations confirm the system's flexibility and the security enhancement provided by multiple sensitive keys.

    Conclusions:

    • The proposed system provides a secure and flexible method for multiple-image encryption using optical interference, spherical waves, and gyrator transforms.
    • The use of sensitive decryption keys significantly enhances the security of the optical encryption system.
    • The system's feasibility is validated through numerical simulations, suggesting potential for optoelectronic implementation.