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Second-harmonic generation from embedded polarization sheets (1992)

Sieverdes, F. ; Pinnow, M. ; Marowsky, G.

Springer

Applied physics 54 (1992), S. 95-97

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ISSN: 1432-0649

Keywords: 42.65.c

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract We consider surface second-harmonic (SH) generation in terms of both a phenomenological description and a microscopical model. As sample serve Langmuir-Blodgett-type monolayers of perfect rotational symmetry around the surface normal. Their second-order susceptibility was determined with high precision by evaluation of the angle-of-incidence dependence in Fresnel reflection and in total internal reflection. The appropriate microscopical model requires embedding of the polarization sheet responsible for SH emission into a uniform medium of permittivity ɛm(ω) and ɛm(2ω) with ɛm(ω)/ɛm(2ω)≠1. The implications for the derivation of molecular average tilt angles from susceptibility ratios are also discussed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00331740

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