A Comparative Study of the Nonlinear Optical Properties of Molecular J- and H-Aggregates in Thin Films

A Comparative Study of the Nonlinear Optical Properties of Molecular J- and H-Aggregates in Thin Films Full article

Journal

High Energy Chemistry
ISSN: 0018-1439

Output data

Year: 2009, Volume: 43, Number: 7, Pages: 607-610 Pages count : DOI: 10.1134/S0018143909070194

Authors

Plekhanov A. I. ¹ , Gorkovenko A. I. ¹ , Orlova N. A. ² , Simanchuk A. E. ¹ , Shelkovnikov V. V. ²

Affiliations

1	(Данные Web of science) Russian Acad Sci, Inst Automat & Electrometry, Siberian Branch, Novosibirsk 630090, Russia
2	(Данные Web of science) Russian Acad Sci, Novosibirsk Organ Chem Inst, Siberian Branch, Novosibirsk 630090, Russia

A comparative study of the dispersion of nonlinear absorption in thin films of molecular J- and H-aggregates of polymethine dyes was performed with the use of the Z-scan (Z-scan technique) over the range 625-825 nm under conditions close to resonance absorption at nanosecond duration of excitation. The measurements were made on film samples of J- and H-aggregates prepared by spin-coating and having identical absorption spectra. The H- and J-aggregates were formed by the synthetic thioflavylium DT-3 and benzothiazole BTC18H dyes, respectively. It was found that the samples of different types of aggregates exhibit nonlinear susceptibility of the same order of magnitude with allowance for the width of exciton absorption peaks.

Plekhanov A.I. , Gorkovenko A.I. , Orlova N.A. , Simanchuk A.E. , Shelkovnikov V.V.
A Comparative Study of the Nonlinear Optical Properties of Molecular J- and H-Aggregates in Thin Films
High Energy Chemistry. 2009. V.43. N7. P.607-610. DOI: 10.1134/S0018143909070194 WOS Scopus РИНЦ

Published print:	Dec 1, 2009
Published online:	Jan 13, 2010

Web of science	WOS:000209057200019
Scopus	2-s2.0-74849111508
Elibrary	24934167
OpenAlex	W1974491660