Related Experiment Video

Updated: Jun 22, 2026

AC Electrokinetic Phenomena Generated by Microelectrode Structures
20:38

AC Electrokinetic Phenomena Generated by Microelectrode Structures

Published on: July 28, 2008

Self-collimation phenomena of surface waves in structured perfect electric conductors and metal surfaces

Sang Soon Oh, Sun-Goo Lee, Jae-Eun Kim

    Optics Express
    |June 18, 2009
    PubMed

    More Related Videos

    Evaluating Plasmonic Transport in Current-carrying Silver Nanowires09:00

    Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

    Published on: December 11, 2013

    The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids10:03

    The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids

    Published on: September 30, 2014

    Related Concept Videos

    Electric Field at the Surface of a Conductor01:26

    Electric Field at the Surface of a Conductor

    Consider a conductor in electrostatic equilibrium. The net electric field inside a conductor vanishes, and extra charges on the conductor reside on its outer surface, regardless of where they originate.
    In the 19th century, Michael Faraday conducted the famous ice pail experiment to prove that the charges always reside on the surface of a conductor. The experimental set-up consists of a conducting uncharged container mounted on an insulating stand. The outer surface of the container is...
    Standing Electromagnetic Waves01:15

    Standing Electromagnetic Waves

    Electromagnetic waves can be reflected; the surface of a conductor or a dielectric can act as a reflector. As electric and magnetic fields obey the superposition principle, so do electromagnetic waves. The superposition of an incident wave and a reflected electromagnetic wave produces a standing wave analogous to the standing waves created on a stretched string.
    Suppose a sheet of a perfect conductor is placed in the yz-plane, and a linearly polarized electromagnetic wave traveling in the...
    Equipotential Surfaces and Conductors01:16

    Equipotential Surfaces and Conductors

    For a conductor in which all charges are at rest, the conductor's surface is equipotential. The electric field is always perpendicular to equipotential surfaces. Therefore, in a conductor with static charges, the electric field just outside the conductor is always perpendicular to the conductor's surface. Any tangential component of the electric field will cause charges to move inside the conductor, which will violate the electrostatic nature of the system. In an electrostatic situation, if a...
    Standing Waves in a Cavity01:28

    Standing Waves in a Cavity

    A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
    Electric Field Inside a Conductor01:20

    Electric Field Inside a Conductor

    When a conductor is placed in an external electric field, the free charges in the conductor redistribute and very quickly reach electrostatic equilibrium. The resulting charge distribution and its electric field have many interesting properties, which can be investigated with the help of Gauss's law.
    Suppose a piece of metal is placed near a positive charge. The free electrons in the metal are attracted to the external positive charge and migrate freely toward that region. This region then has...
    Charge on a Conductor01:26

    Charge on a Conductor

    An interesting property of a conductor in static equilibrium is that extra charges on the conductor end up on its outer surface, regardless of where they originate. Consider a hollow metallic conductor with a uniform surface charge density. Since the conductor itself is in electrostatic equilibrium, there should not be any electric field inside the conductor. Now, assume a Gaussian surface enclosing the hollow portion. Applying Gauss's law, the inner surface of the hollow conductor will not...