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C. V. Raman Created 2026-10-24 Updated 2026-11-05
C. V. Raman and K. S. Krishnan observed additional spectral lines in light scattered by liquids. Filtering the illumination made it possible to distinguish these new components from lines already present in the incident spectrum. In the Raman effect, exchanged energy changes the scattered photon's frequency, providing information about molecular energy levels. The experiment thus turned a faint part of scattering of light into a probe of molecular structure.[ref]
The Optical Analogue of the Compton Effect by Chandrasekhara Venkata Raman and Kariamanikkam Srinivasa Krishnan. 1928 report, filtered incident light and additional scattered spectral lines
A physicist.[ref]
https://www.nobelprize.org/prizes/physics/1930/raman/biographical/. Independent professional biography and identity
Portrait of C. V. Raman
. Unknown photographer; The Modern Review, March 1924. Commons PD-India claim for expired protection; the File requests an additional US public-domain tag. No independent worldwide-rights determination., via Wikimedia Commons. Source.