Digital holographic interferometry for characterization of transparent materials

Pietro Ferraro; Sergio De Nicola; Andrea Finizio; Simonetta Grilli; Giovanni Pierattini

doi:10.1117/12.445580

3 October 2001 Digital holographic interferometry for characterization of transparent materials

Pietro Ferraro, Sergio De Nicola, Andrea Finizio, Simonetta Grilli, Giovanni Pierattini

Proceedings Volume 4399, Optical Measurement Systems for Industrial Inspection II: Applications in Production Engineering; (2001) https://doi.org/10.1117/12.445580
Event: Lasers in Metrology and Art Conservation, 2001, Munich, Germany

Abstract

Accurate measurement of the refractive index of solids is of great importance in various field of industrial processes. We present and discuss a method based on digital holographic interferometry for measuring refractive indices of transparent materials. Two recorded digital holograms are added producing a digital double exposure hologram. The numerical reconstruction of the interferogram intensity enables to determine the index of refraction of the sample under investigation. Advantages and limitations of the prosed approach are discussed.

Citation Download Citation

Pietro Ferraro, Sergio De Nicola, Andrea Finizio, Simonetta Grilli, and Giovanni Pierattini "Digital holographic interferometry for characterization of transparent materials", Proc. SPIE 4399, Optical Measurement Systems for Industrial Inspection II: Applications in Production Engineering, (3 October 2001); https://doi.org/10.1117/12.445580

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