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Advances in Optical Technologies
Volume 2013 (2013), Article ID 905870, 7 pages
Research Article

Optical System for Bispectral Imaging in Mid-IR at 1000 Frames per Second

Infrared Group, Research Directorate, Optics Research Center, P.O. Box 1-948, 37000 Leon, GTO, Mexico

Received 9 August 2012; Accepted 27 November 2012

Academic Editor: Carlo Corsi

Copyright © 2013 Marija Strojnik and Gonzalo Paez. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We propose, evaluate, and demonstrate the performance of an IR/optical double-image experimental setup where we capture two simultaneous images of a single object, in two different spectral bands, using a single detector array. With this arrangement, we may observe rapidly changing phenomena, at a rate of more than 1000 frames per second, without the loss of the spatial information about the test subject. We describe the optical system to perform simultaneous imaging in IR for slightly inclined optical axes. We verify the actual performance by applying the experimental method to flame analysis in the mid-IR to determine the combustion efficiency.