单词	photoemission
释义	photoemission /ˈfəʊtəʊɪˌmɪʃ(ə)n / noun [mass noun] The emission of electrons from a surface caused by the action of light striking it.In the 1950s, researchers began measuring binding energies of core electrons by x-ray photoemission.... They then imaged the sample with x-ray photoemission electron microscopy, a recently developed technique that gives a microscopic map of the magnetic structure. So far, searches for this separation have concentrated on detecting its effect on many-body correlation functions with photoemission, optical, magnetic or tunnelling spectroscopies. Derivatives photoemissive adjective ... In the experiment, we found that when activated by cesium, the indium tin oxide (ITO) thin film would have a photoemissive effect under the radiation of visible light. It has been used to give, at least approximately, the dynamics of photoemissive sources such as an atom absorbing and emitting light or matter in an optical cavity, which exchanges light with the surrounding free space. photoemitter noun ... This photoemitter controls the placement as well as the width of bits of information recorded on magnetic tape. The optical coupler is mounted in a lower part of the casing, and has a photoemitter and a photoreceiver that faces the photoemitter.
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