Anti-resonant waveguide sensors

US7268868B2 · kind B2 · utility

Assignee

• Palo Alto Research Center Incorporated · US

Inventors

• Peter Kiesel · Palo Alto, US
• Oliver Wolst · Walzbachtal, DE
• Michael A. Kneissl · Berlin, DE
• H Ben Hsieh · Mountain View, US

Key dates

• Filing date: Oct 29, 2004
• Grant date: Sep 11, 2007
• Expiry date: Jun 15, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/34
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An improved method of analyzing target analytes in a sample is described. The method is based on anti-resonant guided optical waveguides which enables a strongly improved light-target interaction since the light can be guided within the target-containing medium. The light-target interaction can be monitored by many different means to determine characteristics of the target analyte. The anti-resonant waveguide concept is suitable for a large variety of characterization methods and combinations of them, since it is relatively unaffected by changes to both wavelength and film thickness.