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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A method for determining chemical characteristics of a sample, the method including directly applying a first acoustic wave at a first frequency to a probe and applying, independent of the directly applying the first acoustic wave, a second acoustic wave at a second frequency to the sample, wherein the first frequency is different than the second frequency and the first acoustic wave and the second acoustic wave are simultaneously applied to the probe and the sample, respectively, and form a coupling. The method further including applying electromagnetic energy to the sample, wherein the electromagnetic energy is absorbed by the sample causing a change in phase of the second acoustic wave. The method further including detecting an effect of the coupling and determining a spectrum of the sample based on the detecting.
Passian, Ali (Knoxville, TN), Tetard, Laurene (Knoxville, TN), Thundat, Thomas George (Knoxville, TN), Davison, Brian Henry (Knoxville, TN), Keller, Martin (Knoxville, TN)
12/ 726,118
March 17, 2010
[0001] This invention was made with government support under Contract No. DE-ACO5-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.