blackbody radiation


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  • noun

Synonyms for blackbody radiation

the electromagnetic radiation that would be radiated from an ideal black body

References in periodicals archive ?
Blackbody radiation remained, according to Kirchhoff, independent of the nature of the walls [1,2].
To produce a mixed white light with a color temperature of around 4000 K with phosphor Y-561 and the blue LED, the concentration of phosphors was calculated from the intersection coordinates of the two lines on the CIE chromaticity diagram: the first being the locus of blackbody radiation at 4000 K; the other line being the connection points between the blue LED spectrum and the Y-561 phosphor emission spectrum.
Therefore, we conclude that the Hawking radiation for macroscopic black hole is proportional to the area of black hole, as much as Planck's blackbody radiation spectrum is proportional to the area of blackbody.
It is known that all objects with a temperature above absolute zero radiate electromagnetic waves, and this phenomenon is known as blackbody radiation. The amount of radiated energy in a given wavelength range depends on the temperature.
The recombination current density attributed to the conductionband/valence band process can be expressed in the blackbody radiation model as [17]
All practical light sources are represented, including 17 filament, 68 mixed LED, 159 phosphor LED, 106 fluorescent, 31 high-intensity discharge, 8 temperatures of blackbody radiation, 6 phases of CIE daylight, and 6 miscellaneous illuminants.
The Planck Radiation Law describes the spectral distribution of blackbody radiation, and the formula is
The first key insight was that closed trapped surfaces, discovered by Roger Penrose in the black hole case, would occur in a time reversed sense in cosmology; and the second was that one could show such closed trapped surfaces would exist because of the existence of the cosmic microwave blackbody radiation. These ideas were consolidated in a major joint paper with Roger Penrose in 1970.
Like heat swells the air in a hot-air balloon, so-called "blackbody radiation" (BBR) enlarges the size of the electron clouds within the atom, though to a much lesser degree-by one part in a hundred trillion, a size that poses a severe challenge to precision measurement.
Synchrotron radiation has been recognized as an absolute radiation as its characteristics are calculable by the Schwinger equation just as the blackbody radiation is calculable by using Planck equation.
The results show at 7 THz ca 100-200 W/[m.sup.2] output power couple times over blackbody radiation up to temperature 400K.
But I thought that classical physics fell precisely due to the "ultraviolet catastrophe" when the Rayleigh-Jeans formula failed to predict the drop in frequency of blackbody radiation at higher temperatures.
The PIRELC, a high-output emitter from Cal Sensors can be used as a steady state or pulsed source of blackbody radiation for near-to-far infrared applications.
This structured emission is easily distinguished from the featureless blackbody radiation of the underlying material stream.
These devices often must be exposed to blackbody radiation sources that accurately characterize the response of the device.