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The inverse Raman effect is a form of Raman scattering first noted by W. J. Jones and Boris P. Stoicheff. In some circumstances, Stokes scattering can exceed anti-Stokes scattering; in these cases the continuum (on leaving the material) is observed to have an absorption line (a dip in intensity) at ν L +ν M.
They found the same combinational scattering of light. Raman stated that "The line spectrum of the new radiation was first seen on 28 February 1928." [6] Thus, combinational scattering of light was discovered by Mandelstam and Landsberg a week earlier than by Raman and Krishnan. However, the phenomenon became known as the Raman effect because ...
Raman signal enhancements are achieved through non-linear optical effects, typically realized by mixing two or more wavelengths emitted by spatially and temporally synchronized pulsed lasers. Hyper Raman – A non-linear effect in which the vibrational modes interact with the second harmonic of the excitation beam. This requires very high power ...
Meta analysis by authors Ray, Bratton, Rhine and Jones, 2001, found an even larger effect size for nondirective play therapy, with children performing at 0.93 standard deviations better than non-treatment groups. [29] These results are stronger than previous meta-analytic results, which reported effect sizes of 0.71, [55] 0.71, [56] and 0.66. [36]
[88] [89] Use of the English versions, "Raman effect" and "Raman lines" immediately followed. [90] [22] [91] In addition to being a new phenomenon itself, the Raman effect was one of the earliest proofs of the quantum nature of light. Robert W. Wood at the Johns Hopkins University was the first American to confirm the Raman effect in early 1929 ...
A Raman laser is a specific type of laser in which the fundamental light-amplification mechanism is stimulated Raman scattering. In contrast, most "conventional" lasers (such as the ruby laser ) rely on stimulated electronic transitions to amplify light.
Raman amplification / ˈ r ɑː m ən / [1] is based on the stimulated Raman scattering (SRS) phenomenon, when a lower frequency 'signal' photon induces the inelastic scattering of a higher-frequency 'pump' photon in an optical medium in the nonlinear regime. As a result of this, another 'signal' photon is produced, with the surplus energy ...
He was the joint founding editor of the Journal of Raman Spectroscopy (1973 onwards), later becoming editor-in-chief. His book, Raman Spectroscopy (1977), has achieved a considerable reputation and been translated into various languages. [1] A further book, The Raman Effect, was published in 2002. [3]