Resonator enhanced raman spectroscopy

US9733125B2 · kind B2 · utility

Assignees

• The Penn State Research Foundation · US
• Washington University · US

Inventors

• Zhiwen Liu · State College, US
• Lan Yang · Zhubei City, TW
• Perry Edwards · State College, US
• Corey Janisch · State College, US
• Bo Peng · Malta, US
• Sahin Kaya Ozdemir · Chesterfield, US

Key dates

• Filing date: Sep 25, 2013
• Grant date: Aug 15, 2017
• Expiry date: Dec 28, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N21/65
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Embodiments of the invention provide Raman spectroscopy methods and devices that exploit high quality factor (Q) resonators to enhance Raman signal by several orders of magnitude over the signal typically expected for Raman methods. Embodiments typically include one or more resonators, typically microtoroid microresonators. Embodiments also take advantage of Rayleigh scattering using these microresonators. Embodiments may be particularly useful for non-labeled nanoparticle sensing.