Intensified silicon photodiode array detector linearity: application to coherent anti-Stokes Raman spectroscopy

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Abstract
The linearity of an intensified silicon photodiode array multichannel detector is studied with coherent anti-Stokes Raman and other similar signals. Studies with diffuse and focused (spherically and cylindrically) signals resolved apparent saturation problems which limit the dynamic range of the detector. In addition, it has been shown that there is no short-range wavelength (473–532-nm) dependence on this saturation. Theoretical explanations for these phenomena are also included.