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APPARATUS AND METHODS FOR PROBING A MATERIAL AS A FUNCTION OF DEPTH USING DEPTH-DEPENDENT SECOND HARMONIC GENERATION

United States Patent Application

20170205377
A1
View the Complete Application at the US Patent & Trademark Office
A method for non-invasively probing at least one physics property of a solid material. In one embodiment, the method has the steps of splitting a photon beam into a first photon beam and a second photon beam, exposing the solid material to the first photon beam to generate a coherent acoustic phonon wave in the solid material at time t, and exposing the solid material to the second photon beam at a time t+.DELTA.t, where t+.DELTA.t.gtoreq.t, to generate corresponding second harmonic generation signals, where from the corresponding second harmonic generation signals, the at least one physics property of the solid material is determinable.
Garnett, Joy (Nashville, TN), Krzyzanowska, Halina (Nashville, TN), Tolk, Norman H. (Brentwood, TN)
15/ 324,100
July 13, 2015
STATEMENT OF FEDERALLY-SPONSORED RESEARCH [0003] This invention was made with government support under Contract No. DE-FG02-99ER45781 awarded by the Department of Energy and Contract No. W911NF-10-1-0363 awarded by the Army Research Office. The government has certain rights in the invention.