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Apr 2011
CRAIC TechnologiesRequest Info
Craic Technologies Inc. has announced the Flex UV-VIS-NIR microspectrophotometer for spectroscopic analysis of many types of microscopic samples. It acquires images and spectra from the deep-ultraviolet to the near-infrared. Depending upon the configuration, samples can be analyzed by absorbance, reflectance, luminescence, emission and fluorescence with high speed and accuracy. Microscopic samples can be imaged directly with DirecVu optics and with high-resolution color digital imaging. There are a number of packages that can be added to allow measurement of everything from the refractive index of microscopic samples to thin-film thickness. The system integrates a sensitive spectrophotometer, high-resolution digital imaging, a UV-visible-NIR range microscope and software. Users can store color photos of microscopic samples as they acquire their spectra.


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The natural log of the ratio of absorbed intensity over the total intensity which gives a constant value assuming a stable volume as well as energy. In optical physics the absorbance may be defined as the absorption cross section multiplied by the absorbing material length.
The emission of light or other electromagnetic radiation of longer wavelengths by a substance as a result of the absorption of some other radiation of shorter wavelengths, provided the emission continues only as long as the stimulus producing it is maintained. In other words, fluorescence is the luminescence that persists for less than about 10-8 s after excitation.
See fluorescence; phosphorescence.
A specialized spectrophotometer for use through a microscope on very small areas of an object.
The ratio of reflected flux to incident flux. Unless otherwise specified, the total reflectance is meant; it is sometimes convenient to divide this into the sum of the specular and the diffuse reflectance.
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