Menu

Home Explore People Places Arts History Plants & Animals Science Life & Culture Technology

Science Physics Electromagnetism Electromagnetic radiation

Electromagnetic radiation

Absorption (electromagnetic radiation)

Way in which the energy of a photon is taken up by matter; physical process of absorbing light, while absorbance does not always measure absorption: it measures attenuation (of transmitted radiant power)

Absorption band

Range on the electromagnetic spectrum which are characteristic of a certain transition from initial to final state in a substance

Electromagnetic radiation produced by the deceleration of a charged particle when deflected by another charged particle

Compton scattering

Scattering of photons off charged particles

Cyclotron radiation

Electromagnetic radiation

Form of energy emitted and absorbed by particles which are charged which shows wave-like behavior as it travels through space

Electromagnetic spectrum

Entire range of frequencies of electromagnetic radiation

Electromagnetic wave equation

Partial differential equation used in physics

Evanescent field

Oscillating electric and/or magnetic field that does not propagate as an electromagnetic wave but whose energy is spatially concentrated in the vicinity of the source

Emission of light by a substance that has absorbed light

Penetrating form of electromagnetic radiation

Form of electromagnetic radiation

Areal density of incoming radiant flux

Gives the total power radiated by an accelerating, nonrelativistic point charge

Electromagnetic radiation in or near visible spectrum

Electromagnetic radiation with wavelengths from 1 m to 1 mm

Near and far field

Regarding radioantennas

Single, negligibly-sized object from which light, sound, energy, etc. emanates

Poynting vector

Measure of directional electromagnetic energy flux

Physical quantity in radiometry

Measure of radiant energy over time

Radiative transfer

Energy transfer in the form of electromagnetic radiation

Radio Wave 96.5

Radio station in Blackpool

Techniques for measuring electromagnetic radiation

Spectral density

Relative importance of certain frequencies in a composite signal

Synchrotron radiation

Electromagnetic radiation emitted when charged particles are accelerated radially

Terahertz radiation

Range 300-3000 GHz of the electromagnetic spectrum

Transverse mode

Electromagnetic wave with oscillations perpendicular to the direction of travel

Ultraviolet (disambiguation)

Topics referred to by the same term

Visible spectrum

Portion of the electromagnetic spectrum that is visible to the human eye

Waveguide (radio frequency)

Hollow metal pipe used to carry radio waves

Form of short-wavelength electromagnetic radiation