Observation of second-harmonic generation from a Langmuir-Blodgett monolayer of a merocyanine dye

28 February 1985

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 21 (5) , 169-170
https://doi.org/10.1049/el:19850119

Abstract

Second-harmonic generation (SHG) from a merocyanine dye Langmuir-Blodgett monolayer is reported. Values for the second-order molecular polarisability β and its average orientation within the layer are deduced. Extinction of the SHG is observed for symmetrical bilayers. Protonation of a dye monolayer is seen to suppress SHG.

Keywords

SECOND-HARMONIC GENERATION
SYMMETRICAL BILAYERS
LANGMUIR-BLODGETT MONOLAYER
PROTONATION
SECOND-ORDER MOLECULAR POLARISABILITY
MEROCYANINE DYE
AVERAGE ORIENTATION

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