Welcome to the World of Near Infrared Absorbing Dyes

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  • This section provides a background to infrared light and its location relative to visible and ultraviolet light in the electromagnetic spectrum.

  • The Beer-Lambert Law is a linear relationship between the absorbance of light and the properties of the material through which the light is travelling.

  • Light absorbance can easily be calculated from % transmittance data using the equation or calculator provided.