C. V. Raman

A new radiation

Inaugural Address delivered to the South Indian Science Association on Friday, the 16th March 1928, at Bangalore.

The diffraction of light by high frequency sound waves. Part I.

SummaryThe theory developed in Part I of this series of papers has been developed in this paper to find the Doppler effects in the diffraction components of light produced by the passage of light through a medium containing (1) a progressive supersonic wave and (2) a standing supersonic wave. (1)In the case of the former the theory shows that the nth order which is inclined at an angle

Experimental Proof of the Spin of the Photon

\sin ^{ - 1} \left( { - \begin{array}{*{20}c} {n\lambda } \\ {\lambda *} \\ \end{array} } \right)

Haidinger’s Rings in Curved Plates

to the direction of the propagation of the incident light has the frequencyv – nv* wherev is the frequency of light,v* is the frequency of sound andn is a positive or negative integer and that thenth order has the relative intensity

Quantum theory of X-ray reflection and scattering

Jn^2 \left( {\frac{{2\pi \mu L}}{\lambda }} \right)

The specific heats of crystals and the fallacy of the theories of Debye and Born

where μ is the maximum variation of the refractive index, L is the distance between the faces of the cell of incidence and emergence and λ is the wave-length of light.(2)In the case of a standing supersonic wave, the diffraction orders could be classed into two groups, one containing the even orders and the other odd orders; any even order, say 2n, contains radiations with frequenciesv ± 2rv* wherer is an integer including zero, the relative intensity of thev ± 2rv* sub-component being