Ultra-sensitive, mechanically-responsive optical metasurfaces via strain amplification

US11543306B2 · kind B2 · utility

Assignee

• The Trustees of the University of Pennsylvania · US

Inventors

• Cherie R. Kagan · Bala-Cynwyd, US
• Kevin Turner · Madison, US
• Wenxiang Chen · Urbana, US
• Yijie Jiang · Corinth, US

Key dates

• Filing date: Sep 21, 2020
• Grant date: Jan 3, 2023
• Expiry date: Apr 5, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2562/0266
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Provided are structurally-reconfigurable, optical metasurfaces constructed by, for example, integrating a plasmonic lattice array in the gap between a pair of microbodies that serve to locally amplify the strain created on an elastomeric substrate by an external mechanical stimulus. The spatial arrangement and therefore the optical response of the plasmonic lattice array is reversible.