Scientific Results

Paired interferometric measurement of planarity and parallelism

Year: 2003

Authors: Vannoni M., Molesini G.

Autors Affiliation: Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: An interferometric method to test plane parallel plates both for planarity and parallelism of the end faces is reported. The method requires that the plates are reflective or temporarily metal coated. Measurements are taken by insertion of the plates in a reference cavity. The optical configuration uses a standard programmable interferometer with an external right angle prism folding back the probe beam. The prism error is determined by cavity calibration, and is subtracted at data reduction. The measuring procedure is discussed in detail, and results of a laboratory demonstration are presented.

Conference title:
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KeyWords: Errors; Interferometers; Laser applications; Light reflection; Light sources; Optical glass; Prisms; Refractive index; Standards; Wavefronts, Optical metrology; Parallelism; Planarity; Interferometry
DOI: 10.1117/12.501263

Citations: 1
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-10-17
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