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Proceedings Paper

UV absorption mapping as subsurface damage inspection in transparent optical materials
Author(s): H. Cattaneo; R. Botha; C. Ziolek
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Paper Abstract

Local alterations in UV absorption have been used to investigate subsurface damage in transparent optical materials. As a detection method, a collinear pump-probe arrangement has been utilized and absorption-induced deflections in the nonresonant probe beam has been detected. Depending on the changes in deflection and transmission signals, variations in absorption mappings could be attributed to different origins of material inhomogenities or foreign particles. Also, lightprovoked changes in absorption that can occur with non-linear optical materials have been detected by the proposed method.

Paper Details

Date Published: 1 April 2020
PDF: 8 pages
Proc. SPIE 11352, Optics and Photonics for Advanced Dimensional Metrology, 1135205 (1 April 2020); doi: 10.1117/12.2555715
Show Author Affiliations
H. Cattaneo, NTB Interstaatliche Hochschule für Technik Buchs (Switzerland)
R. Botha, NTB Interstaatliche Hochschule für Technik Buchs (Switzerland)
C. Ziolek, NTB Interstaatliche Hochschule für Technik Buchs (Switzerland)


Published in SPIE Proceedings Vol. 11352:
Optics and Photonics for Advanced Dimensional Metrology
Peter J. de Groot; Richard K. Leach; Pascal Picart, Editor(s)

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