Langmuir-Blodgett alternate layer structures for second-order nonlinear optics

John P. Cresswell; John Tsibouklis; Michael C. Petty; W. James Feast; Neil Carr; Martin J. Goodwin; Y. M. Lvov

doi:10.1117/12.22951

1 December 1990 Langmuir-Blodgett alternate layer structures for second-order nonlinear optics

John P. Cresswell, John Tsibouklis, Michael C. Petty, W. James Feast, Neil Carr, Martin J. Goodwin, Y. M. Lvov

Proceedings Volume 1337, Nonlinear Optical Properties of Organic Materials III; (1990) https://doi.org/10.1117/12.22951
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

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.

Citation Download Citation

John P. Cresswell, John Tsibouklis, Michael C. Petty, W. James Feast, Neil Carr, Martin J. Goodwin, and Y. M. Lvov "Langmuir-Blodgett alternate layer structures for second-order nonlinear optics", Proc. SPIE 1337, Nonlinear Optical Properties of Organic Materials III, (1 December 1990); https://doi.org/10.1117/12.22951

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