- Rayleigh scattering
the scattering of light by particles that are very small in relation to the wavelength of the light, and in which the intensity of the scattered light varies inversely with the fourth power of the wavelength. Cf. Mie scattering.[1935-40; named after J. W. S. RAYLEIGH]
* * *Dispersion of electromagnetic radiation by particles with radii less than 110 the wavelength of the radiation.It is named for Baron Rayleigh, who described it in 1871. Since blue light is at the short wavelength end of the visible spectrum, it is scattered in the atmosphere much more than the longer-wavelength red light. This causes the blue colour of the sky, since the observer sees only the scattered light. The Rayleigh laws predict the variation of the intensity and the polarization of scattered light.
* * *▪ physicsdispersion of electromagnetic radiation by particles that have a radius less than approximately 1/10 the wavelength of the radiation. The process has been named in honour of Lord Rayleigh (Rayleigh, John William Strutt, 3rd Baron), who in 1871 published a paper describing this phenomenon.The angle through which sunlight in the atmosphere is scattered by molecules of the constituent gases varies inversely as the fourth power of the wavelength; hence, blue light, which is at the short wavelength end of the visible spectrum, will be scattered much more strongly than will the long wavelength red light. This results in the blue colour of the sunlit sky, since, in directions other than toward the Sun, the observer sees only scattered light. The Rayleigh laws also predict the variation of the intensity of scattered light with direction, one of the results being that there is complete symmetry in the patterns of forward scattering and backward scattering from single particles. They additionally predict the polarization of the scattered light.
* * *
См. также в других словарях:
Rayleigh scattering — n. [after RAYLEIGH 3d Baron] a type of scattering that occurs when light waves pass through particles that are smaller than the wavelength: this type of scattering in the atmosphere makes the sky appear blue … English World dictionary
Rayleigh scattering — This article is about the optical phenomenon. For the magnetic phenomenon, see Rayleigh law. For the stochastic distribution, see Rayleigh distribution. For the wireless multipath propagation model, see Rayleigh fading. Rayleigh scattering causes … Wikipedia
Rayleigh scattering — Reilėjaus sklaida statusas T sritis fizika atitikmenys: angl. Rayleigh scattering vok. Rayleigh Streuung, f rus. рэлеевское рассеяние, n pranc. diffusion de Rayleigh, f … Fizikos terminų žodynas
Rayleigh scattering — noun The elastic scattering of light or other electromagnetic radiation by particles much smaller than the wavelength of the light. Rayleigh scattering of sunlight in a clear atmosphere is the main reason why the sky is blue … Wiktionary
rayleigh scattering — noun Usage: usually capitalized R Etymology: after Baron John W. S. Rayleigh : scattering of light by particles small enough to render the effect selective so that different colors are deflected through different angles compare tyndall effect … Useful english dictionary
Rayleigh scattering — noun Etymology: John W. S. Rayleigh Date: 1937 scattering of light by particles small enough to render the effect selective so that different colors are deflected through different angles … New Collegiate Dictionary
Rayleigh scattering — noun Physics the scattering of light by molecules or other small particles, without change in wavelength. Origin 1930s: named after the 19th cent. British physicist Lord Rayleigh … English new terms dictionary
Rayleigh scattering cross-section — Reilėjaus sklaidos skerspjūvis statusas T sritis fizika atitikmenys: angl. Rayleigh cross section; Rayleigh scattering cross section vok. Rayleigh Streuquerschnitt, m rus. сечение рэлеевского рассеяния, n pranc. section efficace de diffusion de… … Fizikos terminų žodynas
Scattering — is a general physical process where some forms of radiation, such as light, sound, or moving particles, are forced to deviate from a straight trajectory by one or more localized non uniformities in the medium through which they pass. In… … Wikipedia
Rayleigh — may refer to:*Rayleigh (unit), named after the son of Lord Rayleigh *Rayleigh criterion in Angular resolution *Rayleigh distribution *Rayleigh fading *Rayleigh law on low field magnetization *Rayleigh length *Rayleigh number *Rayleigh quotient… … Wikipedia