System and method enabling simultaneous investigation of sample with two beams of electromagnetic radiation

US6937341B1 · kind B1 · utility

Assignee

• J.A. WOOLLAM CO., INC. · US

Inventors

• John A. Woollam · Lincoln, US
• Galen L. Pfeiffer · Lincoln, US
• Daniel W. Thompson · Lincoln, US
• Blaine D. Johs · Lincoln, US
• Craig M. Herzinger · Lincoln, US

Key dates

• Filing date: Sep 10, 2002
• Grant date: Aug 30, 2005
• Expiry date: Oct 14, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N21/211
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed are system and method for characterizing a system consisting of a fluid sample on a two sided stage, utilizing data obtained by applying, from both sides thereof, beams of electromagnetic radiation to a fluid coated surface in a containing cell volume. The beams can have the same or different wavelength content and/or polarization state, and can be applied at the same or different magnitude angles-of-incidence, and a third typically unpolarized beam can be applied at a normal angle-of-incidence.