optical transition

optical transition

[′äp·tə·kəl tran′zish·ən]
(physics)
A process in which an atom or molecule changes from one energy state to another and emits or absorbs electromagnetic radiation in the visible, infrared, or ultraviolet region.
References in periodicals archive ?
Figure 3 indicates an absorption edge at about 840 nm due to the optical transition from the valence band and conduction band.
The MCM can be placed on one end or both ends of the fiber link as an alternative to utilizing an optical transition assembly, such as a breakout module or harness, at the link endpoints.
The variation in the frequency of the S-D optical transition relative to NIST-F1 was found to be less than [+ or -] 10 fHz/Hz over the 2 years.
1 eV below the lowest optical transition, and because this indirect transition occurs at a lower energy, it is more likely that electrons would lose their energy to phonons than to light.
He reviews classical optics, the treatment of optical transition rates by quantum theory, crystalline materials, glasses, and molecular solids, along with subjects not usually covered in standard texts like semiconductor quantum wells, molecular materials, vibronic solid-state lasers, and nonlinear optics.
Fplf[alpha]] is the electronic optical transition matrix element between the ground state labeled by Fplf[alpha] and the exc ited state labeled by F'p'[beta].
The innovative title page of the printed issue also provides an optical transition to the online version at http://inside.
The measurement was made relative to a known optical transition in calcium using a new femtosecondlaser frequency comb.
Objectives The objectives of Phase 2B Phase 2B are extending support to MTPTC and build capacity for the rehabilitation of post-earthquake neighborhoods, an optical transition and transfer of capacity to the Department MTPTC resume these activities in an effective and comprehensive manner.
We will create the laughlin state by injecting a controlled amount of angular momentum using optical transitions with finely-shaped laser beams.
Yee, "Free carrier induced changes in the absorption and refractive index for intersubband optical transitions in [Al.
On the theoretical level, a paradox of electrodynamics is explained in terms of classical mechanics, and experimental proofs of optical transitions in nonlinear optical phenomena are presented.

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