4 December 1998 Experimental evaluation of the modulation transfer function of an infrared focal plane array using the Talbot effect
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Abstract
A test bench for measuring the Modulation Transfer Function of an InfraRed Focal Plane Array (IRFPA) is described. The system is based on the use of the self-imaging property of a periodic target made of thin slits for a direct projection of a high-resolution pattern directly on to the tested sensor. The test bench has furnished two different types of experimental results on a specific IRFPA. On one hand, a global method called Canted Periodic Target Test has been developed and applied leading to MTF evaluation up to five times the Nyquist frequency. On the other hand, a local line scanning of every pixel has been made.
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Nicolas Guerineau, Jerome Primot, Marcel Caes, Michel Tauvy, Joel Deschamps, "Experimental evaluation of the modulation transfer function of an infrared focal plane array using the Talbot effect", Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); doi: 10.1117/12.328635; https://doi.org/10.1117/12.328635
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