It could be spontaneous, carbon, nocturnal, pollutant etc.,
depending on what's doing the emitting.
Gamma emission is best represented by the release of high-energy electromagnetic radiation from the nucleus of an atom. This type of radiation has the shortest wavelength and highest frequency in the electromagnetic spectrum, making it the most penetrating form of radiation. Gamma emission commonly occurs during radioactive decay processes.
Spontaneous emission in lasers occurs when excited atoms or molecules in the lasing medium release energy in the form of photons. These photons have random phases and directions, which do not contribute to laser amplification. To achieve laser operation, the spontaneous emission needs to be amplified and synchronized through a process known as stimulated emission.
* emisssion of electron from the surface of the metal when light of suitable frequency falls-photoelectric emission. * emision of electron from the metal by quantum tunnling of electron.
Spontaneous emission is the process where an unstable atom or molecule releases energy in the form of particles (such as photons) or waves without any external stimulation. This emission occurs when an excited atom or molecule transitions to a lower energy state, releasing the excess energy in the process.
Three main conditions are required for laser action: population inversion, optical feedback, and stimulated emission. Population inversion occurs when more atoms are in excited states than in the ground state. Optical feedback is achieved through the use of mirrors to reflect and amplify the light. Stimulated emission occurs when an incoming photon stimulates an excited atom to emit a second photon with the same wavelength and direction.
X-rays are not a type of nuclear radiation. They are a type of electromagnetic radiation.
Neutron emission occurs in a type of radioactive decay called beta decay. In beta decay, a neutron within an unstable nucleus transforms into a proton, an electron (beta particle), and an antineutrino. The emission of the electron and antineutrino carries away the energy released from the decay process.
Gamma emission is best represented by the release of high-energy electromagnetic radiation from the nucleus of an atom. This type of radiation has the shortest wavelength and highest frequency in the electromagnetic spectrum, making it the most penetrating form of radiation. Gamma emission commonly occurs during radioactive decay processes.
Spontaneous emission in lasers occurs when excited atoms or molecules in the lasing medium release energy in the form of photons. These photons have random phases and directions, which do not contribute to laser amplification. To achieve laser operation, the spontaneous emission needs to be amplified and synchronized through a process known as stimulated emission.
a type of nebula
Flluorescence is strong in systems in which emission occurs from the state with the lowest energy.
The laser causes the stimulated emission of radiation. The light emitted is monochromatic and coherent,that is plane polarised. I imagine that spontaneous emission occurs in a Light emitting diode ,monochromatic but not polarised. Hope this is of help
Lots of wrong answers out there, tested this on school, the answer is: Drops from a higher to a lower energy level
falls from a higher energy state to a lower energy state.
continuous emission
thermionic emission occurs when the filaments are heated to a certain degree, causing the electrons to boil off and form a space charge or electron cloud.
Band edge emission refers to the light emitted by a material when electrons recombine at the edge of the energy band gap between the valence and conduction bands. This emission typically occurs at specific wavelengths and is used in applications such as light-emitting diodes and lasers.