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Solution DFWM chi((3)) non-linear optical properties of poly[(arylene)silylene]s and poly[(arylene)(ethynylene)silylene]s containing tetra- or hypercoordinate silicon

Douglas, William E, Benfield, Robert E., Antipov, Oleg L, Klapshina, Larisa G, Kuzhelev, Alexander S, Guy, Daniel H M, Jones, Richard G., Mustafa, Alkay, Domrachev, George A (2000) Solution DFWM chi((3)) non-linear optical properties of poly[(arylene)silylene]s and poly[(arylene)(ethynylene)silylene]s containing tetra- or hypercoordinate silicon. Physical Chemistry Chemical Physics, 2 (14). pp. 3195-3201. ISSN 1463-9076. (doi:10.1039/b003046p) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:16398)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1039/b003046p

Abstract

The third-order optical nonlinearities of a series of conjugated poly[(arylene)(ethynylene)silylene]s, and also of a complementary series of poly[(arylene)silylene] statistical copolymers without acetylene groups, have been studied in chloroform solution by using the degenerate four-wave mixing technique with a Q-switched Nd:YAG laser-oscillator at 1064 nm and a pulse duration of ca. 6 ns. The polymers contain a variety of arylene groups including carbazole and anthracene. The electronic and nuclear contributions of the chi((3)) susceptibility and the thermal nonlinearity of the solutions were separated. The chi((3)) susceptibilities of some poly[(arylene)(ethynylene)silylene]s were found to be as high as \Re chi((3))\=0.95x10(-10) esu for solutions of concentration 50 g l(-1). The results show that the presence of a single 8-(dimethylamino)naphthyl ligand at silicon affording pentacoordination has a beneficial effect on the chi((3)) properties. Comparison of the results for the poly[(arylene)silylene]s with those for the poly[(arylene)(ethynylene)silylene]s suggests that the absence of acetylene groups in the former case has in general a deleterious effect on the chi((3)) properties. Confirmation of the order of magnitude of the non-linear response has been confirmed by Z-scan measurements with picosecond laser pulses on hybrid sol-gel silica films of two of the poly[(arylene)(ethynylene)silylene]s containing arylene amide groups.

Item Type: Article
DOI/Identification number: 10.1039/b003046p
Subjects: Q Science > QD Chemistry
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: P. Ogbuji
Date Deposited: 20 Mar 2009 23:30 UTC
Last Modified: 16 Nov 2021 09:54 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/16398 (The current URI for this page, for reference purposes)

University of Kent Author Information

Benfield, Robert E..

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