Electromagnetism And Radiation 1-20
20 entries in the Electromagnetism And Radiation compendium.
RadianceRadiance measures radiant flux per solid angle per projected area.Radiant fluxRadiant flux measures the rate of radiant energy flow.RadiationEnergy emitted as waves or particles through space or matter.Radiation pressureMechanical pressure from electromagnetic radiation momentum exchange.Radiative transferEnergy transfer via electromagnetic radiation through absorption, emission, scattering.RadiometryTechniques for measuring electromagnetic radiation power distribution.Spontaneous emissionSpontaneous emission is the random decay of an excited quantum system emitting a photon.Stimulated emissionPredicted by Einstein; basis of laser and maser.Synchrotron radiationRadiation from relativistic charged particles accelerated perpendicular to velocity.Terahertz radiationElectromagnetic radiation bridging microwaves and infrared, with limited atmospheric rangeUltravioletElectromagnetic radiation beyond violet, with both harmful and beneficial effects.Visible spectrumThe range of electromagnetic radiation visible to the human eye.Waveguide (radio frequency)Hollow metal pipe guiding microwave radio waves.Vacuum permeabilityPhysical constant quantifying magnetic field strength induced by electric current in vacuuVacuum permittivityFundamental constant quantifying vacuum's response to electric fields.VoltageVoltage is the electric potential difference between two points.Magnetic resonanceA magnetism-based resonance process enabling imaging and spectroscopy.Radio frequencyOscillation rate enabling radio wave radiation and technology.Relativistic Doppler effectRelativistic modification of Doppler shift using special relativity.SynchrotronCyclic accelerator with synchronized magnetic field and particle energy.
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