| 单词 | raman effect |
| 释义 | Raman effect[ rah-muhn ] / ˈrɑ mən / noun Optics.the change in wavelength of light scattered while passing through a transparent medium, the collection of new wavelengths (Raman spectrum ) being characteristic of the scattering medium and differing from the fluorescent spectrum in being much less intense and in being unrelated to an absorption band of the medium. Origin of Raman effectFirst recorded in 1925–30; named after Sir C. Raman Words nearby Raman effectRamakrishna, ramal, Ramallah, ramamorph, Raman, Raman effect, Rāmānuja, Ramanujan, Ramaphosa, Ramapithecus, ramark Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for Raman effectRaman effect / (ˈrɑːmən) / nouna change in wavelength of light that is scattered by electrons within a material. The effect is used in Raman spectroscopy for studying molecules Word Origin for Raman effectC20: named after Sir Chandrasekhara Raman (1888–1970), Indian physicist Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for Raman effectRaman effect The alteration of the frequency and the phase of light as it passes through a transparent medium. The Raman effect is caused by small differences between the energy of photons absorbed by the molecules that make up the medium and the energy of photons re-emitted. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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