Interferu00c8metro and measurement of optical properties of a sample and changes in environmental conditions that affect the optical properties of a sample.

摘要

"Interferu00c8metro and measurement of optical properties of a sample and changes in environmental conditions that affect the optical properties of a sample.Provides is a process and apparatus for measuring the optical properties of the samples mass.A laser beam of the probe is fed into two subdivisions of the apparatus, a subdivision of reference and a subdivision of measurement.Both of which contain optical fibers for conducting the laser lights. The subdivision of the measurement includes an area of free space for mounting a sample to be tested.The beam of the probe is directed to the sample in free space. The sample also receives light in free space, instead of getting through the optical fiber, a second laser pump.The interaction of the sample with the laser pump affects the optical properties of the sample.This change in the optical properties can be detected by comparing the output signals of the subdivisions of measuring and reference.