Nonlinear optical properties of cyanine dye J-aggregates in thin films measured by Z-scan technique

Roman V. Markov; Alexander I. Plekhanov; Sergei G. Rautian; Zoya M. Ivanova; Natalja A. Orlova; Vladimir V. Shelkovnikov

doi:10.1117/12.342359

15 March 1999 Nonlinear optical properties of cyanine dye J-aggregates in thin films measured by Z-scan technique

Roman V. Markov, Alexander I. Plekhanov, Sergei G. Rautian, Zoya M. Ivanova, Natalja A. Orlova, Vladimir V. Shelkovnikov

Author Affiliations +

Proceedings Volume 3734, ICONO '98: Fundamental Aspects of Laser-Matter Interaction and New Nonlinear Optical Materials and Physics of Low-Dimensional Structures; (1999) https://doi.org/10.1117/12.342359
Event: ICONO '98: Laser Spectroscopy and Optical Diagnostics: Novel Trends and Applications in Laser Chemistry, Biophysics, and Biomedicine, 1998, Moscow, Russian Federation

Abstract

The dispersion of cubic optical susceptibility of submicron films of cyanine dyes J-aggregates is measured by a z-scan technique. The values of Im(chi) ⁽³), Re(chi) ⁽³) near to J-peak were 10^-5 esu. It was found that Im(chi) ⁽³) has a negative sign but at a low-frequency side of J-peak the sign is reversed. The measured dependence of Re(chi) ⁽³) ((omega) ) has compared with the value calculated by Kramers-Kronig transformation. The dispersion dependence of Im(chi) ⁽³), Re(chi) ⁽³) is quite well described on a basis of four-level model for J- aggregates.

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Roman V. Markov, Alexander I. Plekhanov, Sergei G. Rautian, Zoya M. Ivanova, Natalja A. Orlova, and Vladimir V. Shelkovnikov "Nonlinear optical properties of cyanine dye J-aggregates in thin films measured by Z-scan technique", Proc. SPIE 3734, ICONO '98: Fundamental Aspects of Laser-Matter Interaction and New Nonlinear Optical Materials and Physics of Low-Dimensional Structures, (15 March 1999); https://doi.org/10.1117/12.342359

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