Effect of linear polarisability and local fields on surface SHG


Wijers, C.M.J. and Boeij, P.L. de and Hasselt, C.W. van and Rasing, Th. (1994) Effect of linear polarisability and local fields on surface SHG. Solid State Communications, 93 (1). pp. 17-20. ISSN 0038-1098

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Abstract:A discrete dipole model has been developed to describe Surface Second Harmonic Generation by centrosymmetric semiconductors. The double cell method, which enables the linear reflection problem to be solved numerically for semi-infinite systems, has been extended for the nonlinear case. It is shown that a single layer of nonlinear electric dipoles at the surface and nonlocal effects allows to describe the angle of incidence dependent anisotropic SHG obtained from oxidised Si(001) wafers. The influence of the linear response, turns out to be essential to understand the anisotropic SHG-process.
Item Type:Article
Copyright:© 1995 Elsevier Science
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Link to this item:http://purl.utwente.nl/publications/24090
Official URL:https://doi.org/10.1016/0038-1098(94)00711-X
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