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Proceedings Paper

Langmuir-Blodgett alternate layer structures for second-order nonlinear optics
Author(s): John P. Cresswell; John Tsibouklis; Michael C. Petty; W. James Feast; Neil Carr; Martin J. Goodwin; Y. M. Lvov
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Paper Abstract

A novel Langmuir-Blodgett alternate layer system for second-order nonlinear optics is described and characterised by X-ray diffraction, second harmonic generation and Pockels effect measurements. Excellent deposition was achieved allowing the fabrication of a 301 layer film (thickness = O.95m). This was found to exhibit waveguiding. The effective indices of the guided modes were 1.52 for TM0 and 1.51 for TE0. Both the optical and X-ray diffraction results suggest the presence of some disorder in the molecular alignment within the films. This leads to a value of x2(-2w;'t,, w) = 19 x lO_12 m V' for one bilayer, falling off for an increasing number of bilayers.

Paper Details

Date Published: 1 December 1990
PDF: 6 pages
Proc. SPIE 1337, Nonlinear Optical Properties of Organic Materials III, (1 December 1990); doi: 10.1117/12.22951
Show Author Affiliations
John P. Cresswell, Univ. of Durham (United Kingdom)
John Tsibouklis, Univ. of Durham (United Kingdom)
Michael C. Petty, Univ. of Durham (United Kingdom)
W. James Feast, Univ. of Durham (United Kingdom)
Neil Carr, Plessey Research Caswell Ltd. (United Kingdom)
Martin J. Goodwin, Plessey Research Caswell Ltd. (United Kingdom)
Y. M. Lvov, Institute of Crystallography (Russia)

Published in SPIE Proceedings Vol. 1337:
Nonlinear Optical Properties of Organic Materials III
Garo Khanarian, Editor(s)

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