From Wikipedia, the free encyclopedia
Jump to: navigation, search

In science, the term absorptivity (or absorptance) may refer to:

  • Molar absorptivity, in chemistry, a measurement of how strongly a chemical species absorbs light at a given wavelength
  • Absorbance, in physics, the fraction of radiation absorbed at a given wavelength

See also[edit]

  • Reflectivity, the fraction of incident radiation reflected by a surface
  • Transmittance, the fraction of incident electromagnetic radiation at a specified wavelength that passes through a sample