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Three wavelength quantitative imaging systems

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Real-Time High Resolution Quantitative Imaging by Three Wavelength Digital Holography
An optical system includes more than two optical interferometers that generate interference phenomena between optical waves to measure a plurality of distances, a plurality of thicknesses, and a plurality of indices of refraction of a sample. An electromagnetic detector receives an output of the optical interferometers to render a magnified image of at least a portion of the sample. A controller reduces or eliminates undesired optical signals through a hierarchical phase unwrapping of the output of the electromagnetic detector.
Mann, Christopher J. (Knoxville, TN), Bingham, Philip R. (Knoxville, TN)
12/ 381,758
March 16, 2009