The Texas A&M University System

Xianzhen Zhao

Edward S Fry

Zheng Lu

Deric J Gray

George W Kattawar

George S Kattawar

An apparatus for measuring an absorption coefficient includes a first diffusive material, a second diffusive material inside the first diffusive material separated from the first diffusive material by a cavity, and a transparent material proximate to an inner surface of the second diffusive material that holds an absorptive material. First and second light detectors measure light intensities in thefirst and second diffusive materialscavity and the transparent materialrespectively. An absorption coefficient for the absorptive material may be determined based on the first and second light intensities measured when the cavity is illuminated by a light source.

Apparatus and method for direct measurement of absorption and scattering coefficients in situ

An apparatus for measuring an absorption coefficient includes a first diffusive material, a second diffusive material inside the first diffusive material separated from the first diffusive material by a cavity, and a transparent material proximate to an inner surface of the second diffusive material that holds an absorptive material. First and second light detectors measure light intensities in the first and second diffusive materials respectively. An absorption coefficient for the absorptive material may be determined based on the first and second light intensities measured when the cavity is illuminated by a light source.

Growing community of inventors

College Station, TX, United States of America

Xianzhen Zhao