absorption intensity

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• Absorption spectroscopy — An overview of electromagnetic radiation absorption. This example discusses the general principle using visible light as a specific example. A white beam source – emitting light of multiple wavelengths – is focused on a sample (the complementary… …   Wikipedia

• absorption spectrum — n an electromagnetic spectrum in which a decrease in intensity of radiation at specific wavelengths or ranges of wavelengths characteristic of an absorbing substance (as chlorophyll) is manifested esp. as a pattern of dark lines or bands compare… …   Medical dictionary

• Absorption (electromagnetic radiation) — An overview of electromagnetic radiation absorption. This example discusses the general principle using visible light as specific example. A white beam source emitting light of multiple wavelengths is focused on a sample (the complementary color… …   Wikipedia

• absorption coefficient — noun a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber absorptance equals… …   Useful english dictionary

• absorption edge — The wavelength at which there is an abrupt discontinuity in the intensity of an absorption spectrum for electromagnetic waves, giving the appearance of a sharp edge in its photograph. The transition is due to one particular energy dissipating… …   Dictionary of automotive terms

• absorption spectrum — noun Date: 1869 an electromagnetic spectrum in which a decrease in intensity of radiation at specific wavelengths or ranges of wavelengths characteristic of an absorbing substance is manifested especially as a pattern of dark lines or bands …   New Collegiate Dictionary

• absorption coefficient — Any of four different coefficients that indicate the ability of a substance to absorb electromagnetic radiation. Absorbance is defined as the logarithm of the ratio of incident and transmitted intensity and thus it is necessary to know the base… …   Dictionary of molecular biology

• absorption coefficient — Physics, Optics. a measure of the rate of decrease in the intensity of electromagnetic radiation, as light, as it passes through a given substance. [1895 1900] * * * …   Universalium

• Two-photon absorption — (TPA) is the simultaneous absorption of two photons of identical or different frequencies in order to excite a molecule from one state (usually the ground state) to a higher energy electronic state. The energy difference between the involved… …   Wikipedia

• Tunable diode laser absorption spectroscopy — (TDLAS) is a technique for measuring the concentration of certain species such as methane, water vapor and many more, in a gaseous mixture using tunable diode lasers and laser absorption spectrometry. The advantage of TDLAS over other techniques… …   Wikipedia

• Saturable absorption — is a property of materials where the absorption of light decreases with increasing light intensity. Most materials show some saturable absorption, but often only at very high optical intensities. SESAMs, dyes and carbon nanotubes are useful for… …   Wikipedia