Article Abstracts | April 2007
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Infrared Imaging: The Short and the Long of It
Infrared detectors are finding new applications and facing new challenges.
by Hank Hogan, Contributing Editor
Where vision ends, infrared begins. Stretching from 0.7 to 1000 μm, the infrared spectrum covers a lot of ground, as do the imaging applications that make use of this part of the spectrum. These applications include biological studies, surveillance, fusion research and thermal imaging that highlights defects before a part fails. A look at various applications shows how infrared detectors are being used and what challenges for the technology remain.
Single nanotubes
The core market for Princeton Instruments/Acton of Trenton, N.J., is research imaging, which typically involves low-light situations. For investigators, IR wavelengths to 1.7 μm offer the chance to uncover new things. For example, infrared fluorescent reporters can be seen from deeper within a biological specimen than can visible fluorophores...
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