The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 2006
Filed:
Oct. 01, 2002
Elizabeth Taylor, Southampton, GB;
Gilberto Brambilla, Southampton, GB;
Norberto Chiodini, Southampton, GB;
Alberto Paleari, Southampton, GB;
Giorgio Spinolo, Southampton, GB;
Franca Morazzoni, Southampton, GB;
Roberto Scotti, Southampton, GB;
Elizabeth Taylor, Southampton, GB;
Gilberto Brambilla, Southampton, GB;
Norberto Chiodini, Southampton, GB;
Alberto Paleari, Southampton, GB;
Giorgio Spinolo, Southampton, GB;
Franca Morazzoni, Southampton, GB;
Roberto Scotti, Southampton, GB;
University of Southhampton, Hampshire, GB;
Abstract
Using sol-gel techniques, an optical gain medium has been fabricated comprising a glass ceramic host material that includes clusters of crystalline oxide material, especially tin oxide, and that is doped with active ions concentrated at the clusters. The active ions are preferentially located at the nanoclusters so that they experience the relatively low phonon energy of the oxide and are insensitive to the phonon energy of the host. A host with a high phonon energy, such as silica, can therefore be used without the usual drawback of reduced carrier lifetimes through enhanced nonradiative decay rates.