英语词汇“selection rule”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

selection rule

noun Physics

A rule which describes whether particular quantum transitions in an atom or molecule are allowed or forbidden.This issue is related to the inhibition of carrier relaxation due to the selection rule of interaction between electrons and phonons in discrete energy level systems....

Because the selection rules for one- and two-photon transitions differ, it is possible that 2PE can occur at energies where no corresponding one-photon absorption exists.
There are simple selection rules that usually work in spectroscopy, corresponding to the known properties of atoms.

单词	selection rule
释义	selection rule noun Physics A rule which describes whether particular quantum transitions in an atom or molecule are allowed or forbidden.This issue is related to the inhibition of carrier relaxation due to the selection rule of interaction between electrons and phonons in discrete energy level systems.... Because the selection rules for one- and two-photon transitions differ, it is possible that 2PE can occur at energies where no corresponding one-photon absorption exists. There are simple selection rules that usually work in spectroscopy, corresponding to the known properties of atoms.
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