Patent ID: 7623908
Filing Date: 2009-11-24
Classification: B33Y,G01J,G01N

Abstract:
1. A method of examining a sample, comprising: exposing a non-linear reference medium to a first set of electromagnetic radiation generated in an interferometric system to form a second set of electromagnetic radiation scattered from the non-linear reference medium; exposing a sample to a third set of electromagnetic radiation to form a fourth set of electromagnetic radiation scattered from the sample; and interfering the second set of electromagnetic radiation and the fourth set of electromagnetic radiation; and detecting fourth photos in the fourth set of electromagnetic radiation; wherein the detecting comprises interfering; wherein the fourth photons are anti-Stokes photons or Stokes photons; wherein the first set and the third set of electromagnetic radiation are generated from a source; at least a portion of the second set of electromagnetic radiation is of a frequency different from that of the first set of electromagnetic radiation; and at least a portion of the fourth set of electromagnetic radiation is of a frequency different from that of the third set of electromagnetic radiation.