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Biomimetic Optical-Filter Detection System for Discrimination of Infrared Chemical Signatures

Optical-filter-based chemical sensors have the potential to dramatically alter the field of hazardous materials sensing. Such devices could be constructed using inexpensive components, in a small and lightweight package, for sensing hazardous chemicals in defense, industrial, and environmental applications. Filter-based sensors can be designed to mimic human color vision. Recent developments in this field have used this approach to discriminate between strongly overlapping chemical signatures in the mid-infrared. Reported work relied on using numerically filtered FTIR spectra to model the infrared biomimetic detection methodology. While these findings are encouraging, further advancement of this technique requires the collection and evaluation of directly filtered data, using an optical system without extensive numerical spectral analysis. The present work describes the design and testing of an infrared optical breadboard system that uses the biomimetic mammalian color-detection approach to chemical sensi...

Authors:   Kevin J. Major; Menelaos K. Poutous; Kevin F. Dunnill; Panfilo C. Deguzman; Jasbinder S. Sanghera; Ishwar D. Aggarwal; Kenneth James Ewing
Journal:   Analytical Chemistry
Year:   2016
DOI:   10.1021/acs.analchem.6b02674
Publication date:   22-Nov-2016
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