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

Interference and Diffraction02:18

Interference and Diffraction

50.8K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
50.8K
X-ray Crystallography02:18

X-ray Crystallography

25.4K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
25.4K

You might also read

Related Articles

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

Sort by
Same author

Dragging four-point method along a circular path for high-precision measurement.

Applied optics·2026
Same author

Data-stitching algorithm based on elasticity.

Applied optics·2022
Same author

Impact of Abnormal Remote Stress Myocardial Blood Flow by Dynamic CT Perfusion on Clinical Outcomes.

Scientific reports·2020
Same author

Double region of interest timing bolus technique following endovascular aortic repair: Short-term prognosis analysis.

Vascular·2020
Same author

Aortic CT angiography using the double region of interest timing bolus technique: feasibility of 80 kVp scanning in lean patients.

The international journal of cardiovascular imaging·2019
Same author

Double ROI Timing Bolus Technique to Perform Aortic CT Angiography With a 9-Second Contrast Injection Duration.

AJR. American journal of roentgenology·2019

Related Experiment Video

Updated: Dec 7, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

19.3K

Point-diffraction interferometer wavefront sensor with birefringent crystal.

Ryo Tsukui, Masaru Kino, Kodai Yamamoto

    Applied Optics
    |September 25, 2020
    PubMed
    Summary

    This study introduces a novel point-diffraction interferometer (PDI) for extreme adaptive optics, improving photon efficiency and manufacturing feasibility for exoplanet detection. Numerical simulations optimize the pinhole size for enhanced accuracy in low-light conditions.

    More Related Videos

    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.7K
    On-Chip Crystallization and Large-Scale Serial Diffraction at Room Temperature
    07:42

    On-Chip Crystallization and Large-Scale Serial Diffraction at Room Temperature

    Published on: March 11, 2022

    2.1K

    Related Experiment Videos

    Last Updated: Dec 7, 2025

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
    11:08

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

    Published on: November 30, 2012

    19.3K
    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.7K
    On-Chip Crystallization and Large-Scale Serial Diffraction at Room Temperature
    07:42

    On-Chip Crystallization and Large-Scale Serial Diffraction at Room Temperature

    Published on: March 11, 2022

    2.1K

    Area of Science:

    • Astronomy and Astrophysics
    • Optical Engineering

    Background:

    • Direct imaging of extrasolar planets requires extreme adaptive optics (AO) for ground-based telescopes.
    • Existing wavefront sensors, like point-diffraction interferometers (PDIs), face challenges with photon-usage efficiency and manufacturing.
    • Optimizing pinhole size in PDIs is crucial but often inadequately studied.

    Purpose of the Study:

    • To propose and analyze a novel PDI design that overcomes limitations of previous PDIs.
    • To enhance photon-usage efficiency and manufacturing feasibility for AO wavefront sensing.
    • To determine the optimal pinhole size for the proposed PDI through numerical simulations.

    Main Methods:

    • Development of a new PDI design incorporating a birefringent crystal.
    • Implementation of numerical simulations to evaluate sensor performance.
    • Analysis of photon noise and optimization of pinhole size within the simulation framework.

    Main Results:

    • The novel PDI demonstrates improved photon-usage efficiency compared to existing designs.
    • The proposed sensor design is shown to be realistically manufacturable.
    • Numerical simulations provide insights into the optimal pinhole size for maximizing sensor accuracy.

    Conclusions:

    • The novel birefringent crystal-based PDI offers a promising solution for high-accuracy wavefront sensing in extreme AO.
    • This improved PDI technology can advance the direct imaging of extrasolar planets.
    • Further research should focus on experimental validation and application in astronomical observations.