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A New Diamond ATR Video Microscopy Accessory – Applications in Surface Analysis
EP23915
Poster Title: A New Diamond ATR Video Microscopy Accessory – Applications in Surface Analysis
Submitted on 30 Mar 2016
Author(s): David W. Schiering
Affiliations: Czitek
This poster was presented at Pittsburgh Conference 2016
Poster Views: 1,328
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Poster Information
Abstract: Type IIA diamond is a near perfect material for infrared (IR) spectroscopy applications. The combination diamond’s IR transmission, hardness, and chemical resistivity are unsurpassed by alternative IR materials. Diamond offers an additional advantage – the optical transmission in the visible range – that allows the combination of IR spectroscopy with visible imaging of the specimen. This presentation will concern the application of MicromATR Vision, a new diamond attenuated total reflection (ATR) – video microscopy accessory for Fourier transform infrared (FT-IR) instruments. The accessory employs a single reflection diamond internal reflection element (IRE) in a “roof top” prism configuration. Microscopical observation is accomplished by imaging the specimen plane through the diamond “roof top” onto a megapixel camera. Live images are observed on a computer monitor via USB interface and video microscopy software. Images can be captured, analyzed, and documented using this software. An external reflection interface can also be used in place of the diamond ATR on MicromATR Vision. The system has been used to characterize a variety of surfaces in ATR and external reflection modes. Comparative external reflection and ATR data has been analyzed from spectra recorded from aluminum surfaces coated with polymers. Surface oxidation on metals has also been measured. Polymer coatings on electrical wires were found to have various compositions including polyethylene, polyvinylidene fluoride, and polyvinyl chloride. Finally contaminants and inks on documents and currencies have been measured and analyzed.
Summary: This presentation will concern the application of a new diamond attenuated total reflection (ATR) – video microscopy accessory for Fourier transform infrared (FT-IR) instruments in surface characterization analyses.Report abuse »
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