Up and down conversion systems for production of emitted light from various energy sources

US8389958B2 · kind B2 · utility

Assignees

• Duke University · US
• IMMUNOLIGHT, LLC · US

Inventors

• Tuan Vo-Dinh · Chapel Hill, US
• Jonathan P. Scaffidi · Durham, US
• Venkata Gopal Reddy Chada · Durham, US
• Benoit Lauly · Durham, US
• Yan Zhang · Durham, US
• Molly K. Gregas · Durham, US
• Ian Nicholas Stanton · Durham, US
• Joshua T. Stecher · Durham, US
• Michael J. Therien · Durham, US
• Frederic A. Bourke, Jr. · Greenwich, US
• Zak Fathi · Raleigh, US
• Jennifer Ann Ayres · Raleigh, US
• Zhenyuan Zhang · Suzhou, CN
• Joseph H. Simmons · Gainesville, US
• Stephen John Norton · Cary, US

Key dates

• Filing date: Mar 16, 2010
• Grant date: Mar 5, 2013
• Expiry date: Jul 10, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/256
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system for energy upconversion and/or down conversion and a system for producing a photostimulated reaction in a medium. These systems include 1) a nanoparticle configured, upon exposure to a first wavelength λ1 of radiation, to generate a second wavelength λ2 of radiation having a higher energy than the first wavelength λ1 and 2) a metallic structure disposed in relation to the nanoparticle. A physical characteristic of the metallic structure is set to a value where a surface plasmon resonance in the metallic structure resonates at a frequency which provides a spectral overlap with either the first wavelength λ1 or the second wavelength λ2, or with both λ1 and λ2. The system for producing a photostimulated reaction in a medium includes a receptor disposed in the medium in proximity to the nanoparticle which, upon activation by the second wavelength λ2, generates the photostimulated reaction.