| 单词 | resonance radiation |
| 释义 | > as lemmasresonance radiation resonance radiation n. Physics radiation emitted in resonance fluorescence; (also) the phenomenon of resonance fluorescence. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > fluorescence > of same wavelength resonance radiation1905 resonance fluorescence1925 1905 R. W. Wood in London, Edinb. & Dublin Philos. Mag. 10 514 Repeated efforts have been made..to detect a lateral emission of yellow light by sodium vapour when in the act of absorbing sodium light... This seems to be the first case found of the phenomenon, which it may perhaps be well to style resonance radiation, to distinguish it from fluorescence. 1963 R. W. Ditchburn Light (ed. 2) xvii. 661 Sodium absorbs and re-emits as resonance radiation the two well-known yellow lines at wavelengths 5890 Å. and 5896 Å. 2000 N. Taylor Laser ix. 56 This emission of resonance radiation takes place in an electrical discharge tube, like a neon sign. < as lemmas |
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