Modulation transfer function measurement of an infrared focal plane array by use of the self-imaging property of a canted periodic target

N Guérineau; J Primot; M Tauvy; M Caes

doi:10.1364/ao.38.000631

Modulation transfer function measurement of an infrared focal plane array by use of the self-imaging property of a canted periodic target

Appl Opt. 1999 Feb 1;38(4):631-7. doi: 10.1364/ao.38.000631.

Authors

N Guérineau¹, J Primot, M Tauvy, M Caes

Affiliation

¹ Department of Bioengineering and Institute for Biomedical Engineering, University of California, San Diego, La Jolla, California 92093-0412, USA.

PMID: 18305656
DOI: 10.1364/ao.38.000631

Abstract

We present a new technique for measuring the modulation transfer function (MTF) of a focal plane array (FPA). The main idea is to project a periodic pattern of thin lines that are canted with respect to the sensor's columns. Practically, one aims the projection by using the self-imaging property of a periodic target. The technique, called the canted periodic target test, has been validated experimentally on a specific infrared FPA, leading to MTF evaluation to as great as five times the Nyquist frequency.