Characterization and calibration of a variable-angle absolute reflectometer

Year: 1990

Authors: Castellini C., Emiliani G., Masetti E., Poggi P., Polato P.P.

Autors Affiliation: Comitato Nazionale per la Ricerca e lo Sviluppo dell’Energia Nucleare e delle Energie Alternative, S.P. Anguillarese Km. 1300-Casaccia-Roma, Italy; Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Arcetri-Firenze, Italy; Stazione sperimentale del Vetro, 10 Via Briati, Murano-Venezia, Italy

Abstract: The instrument described is a newly designed reflectometer. Measurements are made with a polarized light beam as a function of wavelengt hand angle of incidence. Calibration tests have outlined the possibility of using the instrument for reflectance measurements on mirrors with good reproducibility (0.2%) and accuracy (better than 1%). This has been obtained by the alignment system of the sample and the absolute method used for the determination of its reflectance .

Journal/Review: APPLIED OPTICS

Volume: 29 (4)      Pages from: 538  to: 543

KeyWords: reflectometer; calibration;
DOI: 10.1364/AO.29.000538

Citations: 11
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