Patent ID: 8793811
Filing Date: 2014-07-29
Classification: B82Y,G01Q

Abstract:
1. A method of obtaining an optical property of a sub micrometer region of a sample using a probe microscope comprising the steps of: a. Interacting a probe of the probe microscope with a sample surface; b. Illuminating the probe and sample surface with a source of radiation; c. Collecting radiation scattered from the sample and probe; d. Applying near-field selective amplification to discriminate scattered near-field radiation from radiation scattered from other sources; e. Repeating steps a-d at a plurality of wavelengths; f. Illuminating a reference sample with the radiation source, wherein the reference sample comprises at least one of an ex situ reference sample and a sample arm reference mirror; g. Collecting radiation scattered and/or reflected from the reference sample to form a reference measurement; h. Calculating a spectrum of an optical property of the sample as a function of wavelength, to correct at least a portion of the spectrum using the reference measurement.