The diffraction of light by high frequency sound waves: Part V

General considerations—oblique incidence and amplitude changes
  • C. V. Raman
  • N. S. Nagendra Nath


The essential idea that the phenomenon of the diffraction of light by high frequency sound waves depends on the corrugated nature of the transmitted wave-front of light has been developed on general considerations in this paper to apply for the case of the oblique incidence of the incident light to the sound waves. It is found that the intensity distribution will hot be symmetrical in general thus explaining the results of Debye and Sears, Lucas and Biquard, Bär and Parthasarathy. The consideration of the amplitude changes of the traversing beam of light explains the results of Hiedemann, Bär and Lucas.

We are highly thankful to Prof. Dr. R. Bär of Zürich for having kindly sent us a copy of the proof of a paper by him describing experimental tests of our theory which is now in course of publication in theHelvetica Physica Acta.


Incident Light Sound Wave Oblique Incidence Amplitude Change Essential Idea 


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  1. 1.
    C. V. Raman and N. S. Nagendra Nath,Proc. Ind. Acad. Sci., 1935,2, 406 and 413; 1936,3, 75 and 119.Google Scholar
  2. 2.
    R. Bär,Helv. Phy. Acta, 1935,8, 591; and a paper to be published shortly.Google Scholar
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    P. Debye and F. W. Sears,Proc. Nat. Acad. Sci., 1932,18, 409.CrossRefGoogle Scholar
  4. 4.
    R. Lucas and P. Biquard,Jour. de Phys. et Rad., 1932,3, 464.CrossRefGoogle Scholar
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    S. Parthasarathy,Proc. Ind. Acad. Sci., 1936,3, 442.Google Scholar
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    R. Lucas,Comptes Rendus, 1936,202, 1165.Google Scholar
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    E. Hiedemann,Erg. der Exakt. Naturw. 1935,14, 201.CrossRefGoogle Scholar

Copyright information

© Indian Academy of Sciences 1936

Authors and Affiliations

  • C. V. Raman
    • 1
  • N. S. Nagendra Nath
    • 1
  1. 1.Department of PhysicsIndian Institute of ScienceBangalore

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