单词 | Doppler-free two-photon spectroscopy |
释义 | Doppler-free two-photon spectroscopy [däp·lǝr ´frē ¦tü ¦fō´tän spek`träs·kǝ·pē] SPECTROSCOPY A version of Doppler free spectroscopy in which the wavelength of a transition induced by the simultaneous absorption of two photons is measured by placing a sample in the path of a laser beam reflected on itself, so that the Doppler shifts of the incident and reflected beams cancel. |
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