electric dipole transition

electric dipole transition

[i¦lek·trik ′dī‚pōl tran′zish·ən]
(atomic physics)
A transition of an atom or nucleus from one energy state to another, in which electric dipole radiation is emitted or absorbed.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
As is well known, the [sup.5][D.sub.0] [right arrow] [sup.7][F.sub.1] line originates from magnetic dipole transition whilst the [sup.5][D.sub.0] [right arrow] [sup.7][F.sub.2] line results from the electric dipole transition. In terms of the Judd-Ofelt theory, the magnetic dipole transition is permitted, but the electric dipole transition is allowed only on condition that the Eu ion occupies a site without an inversion center.
There are several typical emission bands around 560-720 nm assigned to the [sup.5][D.sub.0] [right arrow] [sup.7][F.sub.J] (J = 0-4) transitions of [Eu.sup.3+] [59-63], of which the red emission band at 617 nm is the most intense one due to the electric dipole transition [sup.5][D.sub.0] [right arrow] [sup.7][F.sub.2].
The intense peak at 611 nm and a small peak at 628 nm correspond to the hypersensitive transition between the [sup.5][D.sub.0] and [sup.7][F.sub.2] levels of [Eu.sup.3+] ion in calcium bromofluoride host aroused due to forced electric dipole transition mechanism.