photon

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Related to phonon: Acoustic phonon

photon

 [fo´ton]
a discrete particle (quantum) of radiant energy.

pho·ton (hν, γ),

(fō'ton),
In physics, a corpuscle of energy or particle of light; a quantum of light or other electromagnetic radiation.

photon

(fō′tŏn′)
n.
The elementary particle of light and other electromagnetic radiation; the quantum of electromagnetic energy. The photon is the massless, neutral vector boson that mediates electromagnetic interactions.

pho·ton′ic adj.

pho·ton

(γ) (fō'ton)
physics A corpuscle of energy or particle of light; a quantum of light or other electromagnetic radiation.

photon

a quantum of radiant energy with a wavelength in the visible range of the ELECTROMAGNETIC SPECTRUM.

Photon

A light particle.

photon 

The basic unit of radiant energy defined by the equation
E = hν
where h is Planck's constant (6.62 ✕ 10−34 joule ✕ second), ν the frequency of the light and E the energy difference carried away by the emission of a single photon of light. The term photon usually refers to visible light whereas the term quantum refers to other electromagnetic radiations. See quantum theory; wave theory; troland.

pho·ton

(γ) (fō'ton)
In physics, corpuscle of energy or particle of light; a quantum of light or other electromagnetic radiation.
References in periodicals archive ?
Processes (0) and (0') are transitions that do not require a phonon, whereas processes (1) and ([1.sup.[dagger]]) require an optical phonon.
The nonlinearity introduced in this manner has a geometrical character (see also [10]) and is not dependent on the physical properties of the phonon crystal.
Dimensional factors of phonon spectra, Herald of GrSU [in Russian], Ser.
In this section, the effect of the injected current, the FWHM of homogeneous broadening, and phonon bottleneck on the rise time, fall time, and the bit rate will be treated.
The dipolar PAH and archaeal magnetite in the setting of digoxin induced sodium potassium ATPase inhibition can produce a pumped phonon system mediated frohlich model superconducting state inducing quantal perception with nanoarchaeal sensed gravity producing the orchestrated reduction of the quantal possibilities to the macrosopic world.
where [C.sub.v] is the specific heat per unit volume, v is the speed of phonon. and l is the mean free path of phonon.
The decrease in drift mobility with temperature at low fields is due to increased intra-valley polar optical phonon scattering whereas the decrease in velocity at higher fields is due to increased intra and inter valley scattering.
In another work [C.sub.60] has been added as a phonon scatter at the grain boundary [18].
For example, it converges to 1.5 x [10.sup.-8] W[OMEGA]/[K.sup.2] for nondegenerate semiconductors with a parabolic band and acoustic phonon scattering, while it changes with various parameters (chemical potential, band structure, etc.) for semiconductors between the degenerate and nondegenerate limits [44].
These lead to closed-form representations for the resulting phonon, phason, and electric fields and intensity factors created.
In the recent work, Cartella, Cavalleri and coworkers used intense terahertz pulses to resonantly drive large-amplitude phonon oscillations in silicon carbide and investigated the dynamic response of this phonon by measuring the reflection of weak (also resonant) probe pulses as a function of time delay after the excitation.
The phenomenon of pairing, in a broad sense, is considered as arising of bielectron states, while, in a narrow sense, if the description is based on phonon mechanism, it is treated as formation of bipolaron states [19].