Grid-based dynamic electronic publication: A case study using combined experiment and simulation studies of crown ethers at the air/water interface.
Esther R Rousay, Hongchen Fu, Jamie M Robinson, Jeremy G Frey, Jonathan W Essex
School of Chemistry, University of Southampton,
Highfield, Southampton, SO17 1BJ, UK
- Glossary Search

Electric Dipole Approximation

Short Description
The electric-dipole approximation states that when light propagates through matter it will therefore induce motion of the charged particles that constitute the material.

Long Description
A light wave consists of electric and magnetic fields which vary sinusoidally at high frequencies. When light propagates through matter it will therefore induce motion of the charged particles that constitute the material. In a dielectric medium the charges are bound together and will start to oscillate in the applied electric field; they form oscillating electric dipoles. The contribution from the magnetic field part of the light and from electric quadrupoles is much weaker and is usually neglected. This is the electric-dipole approximation.

Pseudonyms
Electric Dipole Approximation,