Measurement of an FT-IR Image

Although imaging measurements were operated in the step-scan mode with the first-generation FPA detectors, the new-generation FPA detectors are now 

Observation of a Penetration Depth Gradient in FT-IR/ATR Spectroscopic Imaging Applications This phenomenon was described in detail in a previous publication 

Aperture FPA pixel FRA detector pixels successive simultaneous 

1482-1425cm- (c) 2D and (d) 3D. (Reproduced from Ref [38] with permission. Copyright 2006 Society for Applied Spectroscopy.) 

Because of delamination, each detector has a few so-called bad pixels which can be seen very clearly in the live FPA image. Their intensity and the signal-to-noise ratio (SNR) differ from those of other pixels. New FPA detectors must not have more than 3% bad pixels. Similar to conventional single-element MCT detectors, the detector pixels function at low temperature, which can be attained by cooling with liquid nitrogen. During cooling, there is a thermal contraction of the detector pixels and, because the detector consists of layers of different materials (with different expansion coefficients), delamination can occur. However, the 

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