Confocal Micro-Raman Spectroscopy: Theory and Application to a Hybrid Polymer Coating
Abstract:Confocal micro-Raman spectroscopy has been applied for vibrational investigations on a sol-gel derived hybrid polymer coating. In order to characterize the dimensions of the focus inside the coating, the substrate, and the coating/substrate, a model that considers both the refraction and diffraction effects has been developed. A coating of ~20.2 μm thickness applied to polycarbonate substrate has been investigated. The spatial distribution of the Raman intensity in the focal volume was studied at different depths within the sample and the Raman response at the corresponding levels has been calculated. The selection in depth of the Raman response, given by the confocal pinhole, was also taken into account. In comparing the prediction of this theoretical model to the empirical results, a good agreement has been observed.
Document Type: Research Article
Publication date: April 1, 2002
More about this publication?
- The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Request copyrighted SAS materials
- Spectroscopic Nomenclature
- Focal Point (Open Access)
- ingentaconnect is not responsible for the content or availability of external websites