| 单词 | photon |
| 释义 | photon noun[C] physicsspecializeduk/ˈfəʊ.tɒn/us/ˈfoʊ.tɑːn/asingleunitoflight 光子，光量子Quantities & units of light
photon| American Dictionaryphoton noun[C] us/ˈfoʊ·tɑn/physics a verysmallpieceofmatterthat is thebasicunitofelectromagneticenergy, and thattravelsinwavesandcarrieslightand otherformsofradiation Examplesofphotonphoton The entrapment of radiation will make aphotonbe emitted and resonance-reabsorbed many times inside the laser material. From theCambridge English Corpus Suppression of the potential well prevents the free electrons from recombination and, thus, no high-energyphotoncan be emitted. From theCambridge English Corpus Thephotoncounting histogram in fluorescence fluctuation spectroscopy. From theCambridge English Corpus However, a significant radiated energy can be achieved since all the electrons scattered in thephotonmirror will radiate. From theCambridge English Corpus We can see that thephotonenergy is enlarged greatly in the laboratory frame because of the relativistic effect. From theCambridge English Corpus To look at alterations inphotonresponses, dim flashes of light were presented in the presence or absence of steady background illumination. From theCambridge English Corpus Following the injection of such pulses into strongly scattering media, such as tissue, the time dispersion of the photons can be studied. From theCambridge English Corpus One detection scheme presently in use requires optical band-pass filters appropriately designed to bin emitted fluorescence photons of desired target molecules. From theCambridge English Corpus This mismatch is mainly related to the inability of primary producers to harvest the photons incident on the sea or the land surface. From theCambridge English Corpus A small contribution is also obtained from electrons produced byphotoninteractions in the chamber. From theCambridge English Corpus The ridges have compressed enough to be somewhat opaque to backlighter photons. From theCambridge English Corpus This process is analogous to treating thephotonor plasmon field as particles. From theCambridge English Corpus Charged particles will attain relativistic energies close to the pulsar magnetic poles and radiate -ray photons. From theCambridge English Corpus The polarization vector of the massive transversephotonhence is perpendicular to the propagation direction, an expected result. From theCambridge English Corpus When reflection occurs, we can identify the laser pulse with aphotonmirror. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. CollocationswithphotonphotonThese are words often used in combination withphoton. Click on a collocation to see more examples of it. high-energy photon Suppression of the potential well prevents the free electrons from recombination and, thus, nohigh-energyphotoncan be emitted. From theCambridge English Corpus incident photon A simple pumping criterion is considered, and theincidentphotonflux required has been related to the photoionization coefficient and the stimulated emission cross section. From theCambridge English Corpus incoming photon An incoming photon will create a number of such ion pairs proportional to its energy. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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