Method for producing active glass nanoparticles by laser ablation

US7985367B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Kuniaki Hiromatsu · Tokyo, JP
• David Hwang · Perrysburg, US
• Costas P. Grigoropoulos · Berkeley, US

Key dates

• Filing date: Jul 31, 2009
• Grant date: Jul 26, 2011
• Expiry date: Oct 15, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S977/889
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for producing active glass nanoparticles that exhibit upconversion is described. The method employs pulsed-laser ablation of an active glass substrate using, for example, a high repetition rate ultra-short pulse duration laser under normal atmospheric conditions or in a liquid environment.