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

Glassware Calibration01:11

Glassware Calibration

270
Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
270
Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

8.2K
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...
8.2K
Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

13.4K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
13.4K
Instrument Calibration01:12

Instrument Calibration

218
Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
218

You might also read

Related Articles

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

Sort by
Same author

Advances in organ-on-chip for drug transporter study: Key insights and hurdles.

Drug metabolism and disposition: the biological fate of chemicals·2026
Same author

Line-of-sight optical turbulence and wind profile monitoring during free-space optical communication links.

Optics express·2026
Same author

Tip-tilt retrieval using trilateration of a sodium laser guide star.

Optics express·2026
Same author

Comparison of Rayleigh and sodium laser guide stars for improved ground-to-GEO communication.

Optics express·2026
Same author

Detecting the Undetectable: Analytical Strategies for Novel Psychoactive Substances.

Therapeutic drug monitoring·2026
Same author

Shack-Hartmann wavefront sensor slope measurement algorithm robust to scintillation and sensor saturation.

Optics letters·2025
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
See all related articles

Related Experiment Video

Updated: Jul 17, 2025

Bringing the Visible Universe into Focus with Robo-AO
10:35

Bringing the Visible Universe into Focus with Robo-AO

Published on: February 12, 2013

19.5K

Two-aperture measurements for GEO-feeder adaptive optics pre-compensation optimization.

Perrine Lognoné, Jean-Marc Conan, Ghaya Rekaya

    Optics Letters
    |September 1, 2023
    PubMed
    Summary
    This summary is machine-generated.

    We developed a new method using two ground stations to estimate optical link phase for geostationary orbit (GEO) satellites. This improves telecom performance by reducing atmospheric distortion, especially in harsh conditions.

    More Related Videos

    Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes
    08:27

    Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes

    Published on: March 3, 2023

    984
    Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
    09:01

    Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques

    Published on: April 4, 2017

    8.7K

    Related Experiment Videos

    Last Updated: Jul 17, 2025

    Bringing the Visible Universe into Focus with Robo-AO
    10:35

    Bringing the Visible Universe into Focus with Robo-AO

    Published on: February 12, 2013

    19.5K
    Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes
    08:27

    Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes

    Published on: March 3, 2023

    984
    Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
    09:01

    Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques

    Published on: April 4, 2017

    8.7K

    Area of Science:

    • Optical communication
    • Atmospheric physics
    • Space engineering

    Background:

    • Ground-to-geostationary orbit (GEO) optical links are crucial for satellite communication.
    • Point-ahead anisoplanatism, caused by atmospheric turbulence, degrades telecom performance.
    • Current methods struggle in severe atmospheric conditions.

    Purpose of the Study:

    • To present a novel method for estimating pre-compensation phase in ground-to-GEO optical links.
    • To mitigate the impact of anisoplanatism on GEO-feeder link performance.
    • To improve the coupled flux statistics for satellite communication.

    Main Methods:

    • Utilizing downlink phase and log-amplitude measurements from two ground apertures.
    • Estimating pre-compensation phase to counteract atmospheric effects.
    • Comparing performance against a single-aperture estimation method.

    Main Results:

    • Reduced anisoplanatic phase variance by 50%.
    • Demonstrated superior performance over single-aperture methods in severe atmospheric conditions.
    • Showed that low-resolution amplitude measurements suffice for the second aperture.

    Conclusions:

    • The proposed two-aperture method effectively reduces anisoplanatism in ground-to-GEO optical links.
    • This technique enhances satellite telecom performance and coupled flux.
    • The method is robust, particularly under challenging atmospheric turbulence.