Second harmonic generation in planar optical waveguides |
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Authors: | A. Bratz B. U. Felderhof G. Marowsky |
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Affiliation: | (1) Institut für Theoretische Physik A, R.W.T.H. Aachen, Templergraben 55, D-5100 Aachen, Fed. Rep. Germany;(2) Max-Planck-Institut für biophysikalische Chemie, Postfach 2841, D-3400 Göttingen 1, Fed. Rep. Germany |
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Abstract: | We study optical second harmonic generation (SHG) in planar waveguide structures composed of several layers with different dielectric constants. We develop a general formalism for the calculation of mode generation by a planar antenna embedded in the waveguide. As an application we consider a monolayer of high second-order susceptibility adsorbed at the interface between two layers of the waveguide structure. Periodic modulation of the nonlinear susceptibility allows phase matching leading to dramatically enhanced second harmonic intensities. We investigate the SHG-efficiency of various experimentally realizable geometries. |
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Keywords: | 42.65k 42.80 42.82 |
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