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... > theoretical physics aspects > field theory > classical field theory > electromagnetism > electromagnetic radiation > infrared radiation

Terme préférentiel

infrared radiation  

Définition(s)

  • Infrared (sometimes called infrared light and IR) is electromagnetic radiation (EMR) with wavelengths longer than those of visible light and shorter than radio waves. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 THz). Longer IR wavelengths (30 μm-100 μm) are sometimes included as part of the terahertz radiation range. Almost all black-body radiation from objects near room temperature is at infrared wavelengths. As a form of electromagnetic radiation, IR propagates energy and momentum, exerts radiation pressure, and has properties corresponding to both those of a wave and of a particle, the photon. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Infrared)

Concept(s) générique(s)

Concept(s) spécifique(s)

Concept(s) associé(s)

Synonyme(s)

  • infrared
  • IR radiation

Traductions

URI

http://data.loterre.fr/ark:/67375/MDL-ZTD0Q7ZD-V

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RDF/XML TURTLE JSON-LD Dernière modif. 24/04/2023