Applications of Optical Interferometer Techniques for Precision Measurements of Changes in Temperature, Growth and Refractive Index of Materials: A Brief Review


Different interferometer techniques are discussed, as well as their applications. The idea of optical heterodyne detection is presented in depth, as well as its applications to in situ crystal growth rate measurement, surface roughness assessment of coated mirrors, and temperature variations caused by laser heating. For the measurement of temperature changes, the fluorescence ratio method, fluorescence lifetime measurement, Michelson interferometer, and Mach-Zehnder interferometer techniques are given in detail. It is discussed how to utilise a Mach-Zehnder interferometer to track changes in solution refractive index or concentration. For some of the measurements, a full error analysis is provided.

Author (S) Details

B. Rami Reddy
Alabama A&M University, Department of Physics, P.O. Box 1268, Normal, AL 35762, USA.

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