INVESTIGADORES
MIGUEL Maria De La Paz
artículos
Título:
A comparison of different approaches for depth profiling of films and coatings by confocal Raman microscopy
Autor/es:
MIGUEL, M.D.L.P; PABLO TOMBA, J.
Revista:
PROGRESS IN ORGANIC COATINGS
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Lugar: Amsterdam; Año: 2011 vol. 74 p. 43 - 49
ISSN:
0300-9440
Resumen:
We compare and analyze different approaches to perform depth profiling of polymer films and coatings
by confocal Raman microscopy (CRM). Data were generated using three methodologies: conventional
metallurgical objectives, oil-immersion optics and numerical post processing of the as-measured intensity
profiles, via an optimized deconvolution technique adapted to CRM. A series of bi- and multi-layered
polymeric films were used as test systems. Strengths and weaknesses of each methodology are evaluated
in terms of delivered depth resolution, signal throughput and flexibility. It is shown that the application of
regularized deconvolution on data obtained from dry objectives yielded intensity profiles with a quality
comparable, in some cases superior, to those obtained with immersion objectives, with the advantage of
being totally non-invasive.