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Measurement of the diameter variation and refractive index inhomogeneity of a fused silica sphere using four-surface phase-shifting interferometry

Published

Author(s)

Chu-Shik Kang, Ulf Griesmann, Johannes A. Soons

Abstract

The diameter variation and refractive index inhomogeneity of a fused silica sphere were measured with a frequency-shifting Fizeau interferometer in a four-surface configuration. The phase-shifting algorithms to analyze the interference signals for each basic cavity were designed using the characteristic polynomial theory. We describe the experimental setup and preliminary results.
Proceedings Title
XX IMEKO World Congress; Metrology for Green Growth
Conference Dates
September 9-14, 2012
Conference Location
Busan, KR

Keywords

phase-shifting interferometry, characteristic polynomial, sphere measurement, diameter variation, refractive index inhomogeneity

Citation

Kang, C. , Griesmann, U. and Soons, J. (2012), Measurement of the diameter variation and refractive index inhomogeneity of a fused silica sphere using four-surface phase-shifting interferometry, XX IMEKO World Congress; Metrology for Green Growth, Busan, KR (Accessed May 26, 2024)

Issues

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Created September 8, 2012, Updated October 12, 2021