Related Experiment Video

Updated: Jun 16, 2026

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging
05:45

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

Published on: March 31, 2022

Space charge fields: a fringe technique for observing such fields during hologram writing in LiNbO(3)

W D Cornish, L Young, M L Thewalt

    Applied Optics
    |February 19, 2010
    PubMed

    More Related Videos

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

    Related Concept Videos

    The Hall Effect01:30

    The Hall Effect

    Edwin H. Hall, in the year 1879, devised an experiment that could be used to identify the polarity of the predominant charge carriers in a conducting material. From a historical perspective, this experiment was the first to demonstrate that the charge carriers in most metals are negative.
    Magnetic Field due to Moving Charges01:23

    Magnetic Field due to Moving Charges

    A stationary charge creates and interacts with the electric field, while a moving charge creates a magnetic field.
    Consider a point charge moving with a constant velocity. Like the electric field, the magnetic field at any point is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance between the source point and the field point. However, unlike the electric field, the magnetic field is always perpendicular to the plane containing the line...
    Electric Field Lines01:25

    Electric Field Lines

    The three-dimensional representation of the electric field of a positive point charge requires tracing the electric field vectors, whose lengths decrease as the square of their distance from the charge and which point away from the charge at each point. This vector field is no doubt challenging to visualize. The visualization of electric fields becomes quickly intractable as the number of charges increases.
    The solution to this problem is to use electric field lines, which are not vectors but...
    Electric Field of a Charged Disk01:23

    Electric Field of a Charged Disk

    The simplest case of a surface charge distribution is the uniformly charged disk. Calculating its electric field also helps us calculate the electric field of a large plane of charge.
    The system's symmetry is in the cylindrical directions across the plane of the charge. As a result, the electric fields created by various surface charge elements nullify each other in the direction parallel to the surface. Thereby, the resulting electric field is perpendicular to the plane. Since the disk is...
    Confocal Fluorescence Microscopy01:16

    Confocal Fluorescence Microscopy

    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,...
    Electric Field of a Continuous Line Charge01:19

    Electric Field of a Continuous Line Charge

    In physics, symmetry in a system means that something in the considered system remains unchanged due to a specific operation to which it is subjected. For example, consider a horizontal square. The square looks the same if its right and left sides are interchanged. Hence, it is symmetric under a right-left interchange.
    In calculations of electric fields, symmetry is of great use. For example, while calculating electric fields of continuous charge distributions.
    Consider a line element with a...