Patent ID: 7602501
Filing Date: 2009-10-13
Classification: G01B,G01N,G02B

Abstract:
1. A method for determining the three-dimensional susceptibility of a sample, the method comprising: a. providing a source of a beam of radiation characterized by a temporally dependent spectrum and a local propagation axis defined at a locus of incidence with respect to a surface of the sample; b. irradiating the surface in a plane characterized by a fixed displacement along the propagation axis of the beam; c. superposing scattered radiation from the sample with a reference beam derived from the source of the beam of radiation to provide an interference signal; d. deriving a forward scattering model relating measured data to structure of an object; and e. solving an inverse scattering problem based upon the forward scattering model and the interference signal to infer a three-dimensional structure of the sample.