Search results
Results from the WOW.Com Content Network
Photoluminescence excitation (abbreviated PLE) is a specific type of photoluminescence and concerns the interaction between electromagnetic radiation and matter.It is used in spectroscopic measurements where the frequency of the excitation light is varied, and the luminescence is monitored at the typical emission frequency of the material being studied.
where the first contribution, ~, contains the Coulomb-renormalized single-particle energy that is determined by the bandstructure of the solid.The Coulomb renormalization are identical to those that appear in the semiconductor Bloch equations (SBEs), showing that all photon-assisted polarizations are coupled with each other via the unscreened Coulomb-interaction .
Piezospectroscopy (also known as photoluminescence piezospectroscopy) is an analytical technique that reveals internal stresses in alumina-containing materials, particularly thermal barrier coatings (TBCs).
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
Photo-reflectance is an optical technique for investigating the material and electronic properties of thin films.Photo-reflectance measures the change in reflectivity of a sample in response to the application of an amplitude modulated light beam.
Photoluminescence (abbreviated as PL) is light emission from any form of matter after the absorption of photons (electromagnetic radiation). [1] It is one of many forms of luminescence (light emission) and is initiated by photoexcitation (i.e. photons that excite electrons to a higher energy level in an atom), hence the prefix photo- . [ 2 ]
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate
Sensitized triplet-triplet annihilation (sTTA) based photon upconversion is a bimolecular process that through a number of energy transfer steps, efficiently combines two low frequency photons into one photon of higher frequency.