High-sensitivity fiber-compatible optical acoustic sensor

US7526148B2 · kind B2 · utility

Assignee

• The Board of Trustees of the Leland Stanford Junior University · US

Inventors

• Onur Kilic · Palo Alto, US
• Olav Solgaard · Stanford, US
• Michel J. F. Digonnet · Palo Alto, US
• Gordon S. Kino · Stanford, US

Key dates

• Filing date: Apr 28, 2006
• Grant date: Apr 28, 2009
• Expiry date: Feb 20, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G01H9/004
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An acoustic sensor includes at least one photonic crystal structure having at least one optical resonance with a resonance frequency and a resonance lineshape. The acoustic sensor further includes a housing substantially surrounding the at least one photonic crystal structure and mechanically coupled to the at least one photonic crystal structure. At least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the housing.