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Giant Enhancement of Surface Second Harmonic Generation in BaTiO_3 due to Photorefractive Surface Wave Excitation

Igor I. Smolyaninov·Chi H. Lee·Christopher C. Davis
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Abstract

We report observation of strongly enhanced surface SHG in BaTiO_3 due to excitation of a photorefractive surface electromagnetic wave. Surface SH intensity may reach 10^{-2} of the incident fundamental light intensity. Angular, crystal orientation and polarization dependencies of this SHG are presented. Possible applications of this effect in nonlinear surface spectroscopy are discussed.

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BibTeXRIS

Igor I. Smolyaninov, Chi H. Lee, Christopher C. Davis. 1999-06-16. Giant Enhancement of Surface Second Harmonic Generation in BaTiO_3 due to Photorefractive Surface Wave Excitation. https://doi.org/10.1103/physrevlett.83.2429

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