Methods and systems for scanning probe sample property measurement and imaging

US11994533B2 · kind B2 · utility

Assignee

• The Regents of the University of Colorado, a Body Corporate · US

Inventors

• Rafael Piestun · Boulder, US
• Simon Labouesse · Boulder, US
• Markus B. Raschke · Boulder, US
• Eric Dickeson Muller · San Francisco, US
• Samuel Johnson · Boulder, US

Key dates

• Filing date: Nov 25, 2020
• Grant date: May 28, 2024
• Expiry date: Oct 28, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01Q60/06
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Infrared (IR) vibrational scattering scanning near-field optical microscopy (s-SNOM) has advanced to become a powerful nanoimaging and spectroscopy technique with applications ranging from biological to quantum materials. However, full spatiospectral s-SNOM continues to be challenged by long measurement times and drift during the acquisition of large associated datasets. Various embodiments provide for a novel approach of computational spatiospectral s-SNOM by transforming the basis from the stationary frame into the rotating frame of the IR carrier frequency. Some embodiments see acceleration of IR s-SNOM data collection by a factor of 10 or more in combination with prior knowledge of the electronic or vibrational resonances to be probed, the IR source excitation spectrum, and other general sample characteristics.