Next Article in Journal
Development of a Large, Low-Cost, Instant 3D Scanner
Next Article in Special Issue
Crustal Strain Observation Using a Two-Color Interferometer with Accurate Correction of Refractive Index of Air
Previous Article in Journal
Local Control of Audio Environment: A Review of Methods and Applications
Review

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

Department of Physics, Alabama A&M University, P.O. Box 1268, Normal, AL 35762, USA
Received: 13 December 2013 / Revised: 16 March 2014 / Accepted: 27 March 2014 / Published: 5 May 2014
(This article belongs to the Special Issue Precision Measurements and Metrology Using Lasers)
Optical metrology techniques used to measure changes in thickness; temperature and refractive index are surveyed. Optical heterodyne detection principle and its applications for precision measurements of changes in thickness and temperature are discussed. Theoretical formulations are developed to estimate crystal growth rate, surface roughness and laser cooling/heating of solids. Applications of Michelson and Mach-Zehnder interferometers to measure temperature changes in laser heating of solids are described. A Mach-Zehnder interferometer is used to measure refractive index and concentration variations of solutions in crystal growth experiments. Additionally, fluorescence lifetime sensing and fluorescence ratio method are described for temperature measurement. For all the above techniques, uncertainty calculations are included. View Full-Text
Keywords: Optical heterodyne detection; Michelson interferometer; Mach-Zehnder interferometer; laser cooling of solids; laser heating of solids; fluorescence lifetime sensing; fluorescence ratio method; optical sensing of temperature; Interferometric measurement of crystal growth Optical heterodyne detection; Michelson interferometer; Mach-Zehnder interferometer; laser cooling of solids; laser heating of solids; fluorescence lifetime sensing; fluorescence ratio method; optical sensing of temperature; Interferometric measurement of crystal growth
Show Figures

Figure 1

MDPI and ACS Style

Bommareddi, R.R. Applications of Optical Interferometer Techniques for Precision Measurements of Changes in Temperature, Growth and Refractive Index of Materials. Technologies 2014, 2, 54-75. https://0-doi-org.brum.beds.ac.uk/10.3390/technologies2020054

AMA Style

Bommareddi RR. Applications of Optical Interferometer Techniques for Precision Measurements of Changes in Temperature, Growth and Refractive Index of Materials. Technologies. 2014; 2(2):54-75. https://0-doi-org.brum.beds.ac.uk/10.3390/technologies2020054

Chicago/Turabian Style

Bommareddi, Rami R. 2014. "Applications of Optical Interferometer Techniques for Precision Measurements of Changes in Temperature, Growth and Refractive Index of Materials" Technologies 2, no. 2: 54-75. https://0-doi-org.brum.beds.ac.uk/10.3390/technologies2020054

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop