monochromaticityn.
/ˌmɒnə(ʊ)ˌkrəʊməˈtɪsᵻti/, U.S. /ˌmɑnəˌkroʊməˈtɪsᵻdi/ Physics.
The condition of being monochromatic; the extent to which radiation consists of a single wavelength or frequency.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > [noun] > wavelength > concentration
monochromaticity1907
the world > matter > physics > electromagnetic radiation > light > chromatism > [noun] > variation in wavelength
monochromaticity1907
dispersivity1913
1907 E. J. Spitta Microscopy xiv. 368 The advantage gained in the separating power imparted to a lens thereby may not entirely compensate for the monochromaticity of the light.
1960 S. Tolansky Surface Microtopography i. 5 For two-beam work the Wratten 77A didymium glass filter gives excellent monochromaticity.
1963 G. Troup Masers & Lasers (ed. 2) vii. 113 The advantages of maser optical sources are: the extreme monochromaticity, resulting in huge spectral energy-densities; [etc.].
1972 Nature 22 Dec. 483/1 The intensity, coherence and monochromaticity of laser light have made it an ideal radiation source for selective alteration of cell organelles.
2009 L. Grossman Magicians 151 He went over to the tiny window looking out on the lunar snowfields. The sheer monochromaticity of the landscape was beginning to make him hallucinate colors.
This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).
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n.1907