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Related Concept Videos

Intensity Of Electromagnetic Waves01:22

Intensity Of Electromagnetic Waves

The energy transport per unit area per unit time, or the Poynting vector, gives the energy flux of an electromagnetic wave at any specific time. For a plane electromagnetic wave with E0 and B0 as the peak electric and magnetic fields and traveling along the x-axis, the time-varying energy flux can be given by the following equation:
Interference and Diffraction02:18

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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.
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Energy Associated With a Charge Distribution

The work done to bring a charge through a distance r is given by the potential difference between the initial and the final position. To assemble a collection of point charges, the total work done can be expressed in terms of the product of each pair of charges divided by their separation distance, defined with respect to a suitable origin. Solving this expression gives the energy stored in a point charge distribution.
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
Magnetostatic Boundary Conditions01:28

Magnetostatic Boundary Conditions

An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
Electric Field of a Non Uniformly Charged Sphere01:22

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Gauss's law states that the electric flux through any closed surface equals the net charge enclosed within the surface. This law is beneficial for determining the expressions for the electric field for a particular charge distribution if the electric flux is known.
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Updated: May 14, 2026

Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light
09:19

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Published on: July 29, 2013

Nonuniversal intensity correlations in a two-dimensional Anderson-localizing random medium.

Pedro David García1, Søren Stobbe, Immo Söllner

  • 1Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, DK-2100 Copenhagen, Denmark. garcia@nbi.ku.dk

Physical Review Letters
|February 2, 2013
PubMed
Summary
This summary is machine-generated.

Quantum emitters reveal hidden correlations in light scattering within Anderson-localized photonic crystals. This enhances light-matter interactions for quantum applications and biophotonics.

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Last Updated: May 14, 2026

Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light
09:19

Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light

Published on: July 29, 2013

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy
09:16

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Area of Science:

  • Optics and Photonics
  • Quantum Physics
  • Condensed Matter Physics

Background:

  • Light scattering in complex dielectric media causes opacity due to multiple scattering events.
  • Despite randomness, light paths can exhibit correlations, encoding information about the medium.
  • Anderson localization describes the phenomenon where light becomes trapped in disordered media.

Purpose of the Study:

  • To investigate nonuniversal intensity correlations in light scattered by a disordered photonic crystal.
  • To utilize quantum emitters as probes for microscopic details within the photonic crystal.
  • To explore enhanced light-matter interactions and potential applications in biophotonics.

Main Methods:

  • Spectroscopic measurements were performed on quantum emitters embedded within a disordered photonic crystal.
  • The photonic crystal was engineered to exhibit Anderson localization of light.
  • In situ probing of the medium's microscopic properties by the quantum emitters.

Main Results:

  • Observed nonuniversal intensity correlations in the far-field, imprinted by near-field properties.
  • Demonstrated that embedded quantum emitters effectively probe and reflect the medium's microscopic details.
  • Correlations were linked to the Anderson localization phenomenon within the photonic crystal.

Conclusions:

  • Findings offer novel methods for enhancing light-matter interactions, relevant to quantum electrodynamics and energy harvesting.
  • Potential applications include subwavelength diffuse-wave spectroscopy for biophotonics.
  • Correlations provide a new avenue for understanding and utilizing light transport in disordered media.