8/23/2023 0 Comments Particle model of light phenomena![]() Some Key Properties of Photons The delivery of energy is quantized. This theory attributes fairly strange properties to photons, which cannot be reconciled either with a simple particle picture or with a pure wave picture, but accurately match a wide range of observations. Here, photons are seen as the elementary excitations of the electromagnetic quantum field. A consistent and very powerful, but certainly not simple description of the nature of light is achieved by modern quantum optics. Calculator for Photon Properties Vacuum wavelength:Įnter input values with units, where appropriate.Īfter you have modified some values, click a “calc” button to recalculate the field left of it.Īttention: The buttons do not work, as Javascript is turned off in your browser!Īlthough a 'naïve' interpretation of photons as particles of light gives a useful picture for the intuitive understanding of many quantum phenomena, it can be seriously misleading to apply it without understanding its limitations. ![]() The term photon, however, was coined only in 1926 by the physical chemist Gilbert N. ![]() The idea that light consists of such energy bunches had already been used early in the 20 th century by Max Planck in the context of thermal radiation, and by Albert Einstein when investigating the photoelectric effect. the product of Planck's constant and the optical frequency, and is also related to the vacuum wavelength. This can be interpreted such that the light beam consists of small bunches of energy, called photons or light quanta (German 'Lichtquanten' = portions of light). When a weak light beam hits a sensitive photodetector, energy is found to be delivered in the form of small bunches, rather than continuously. How to cite the article suggest additional literature Encyclopedia > letter P > Photons PhotonsĬategories: general optics, quantum optics, physical foundations
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