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Proceedings Paper

Third-order nonlinear optical properties of CuPc: influence of thickness and concentration
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Paper Abstract

The concentration dependence of third order nonlinear optical susceptibility ( χ<3> ) of copper phthalocyanine (CuPc) dissolved in tetrahydrofuran (THF) using the degenerate four wave mixing (DFWM) method at 532 nm was investigated. We present the linear dependence of the third order nonlinear optical susceptibility ( χ<3> ) as a function of different concentration for CuPc dissolved in THF. We also calculated the second order hyperpolarizability ( γ) of CuPc solutions. Third harmonic generation (THG) measurements at the 1064 nm performed on CuPc thin films are also presented. We found that the χ<3>DFWM values are larger than the χ<3>THG ones. This variation observed in χ<3> values, occurs probably due to the different resonance contributions in solution and solid state of CuPc. We show that in the case of DFWM measurements the one and two-photon resonant contributions at the Q and C-band increase χ<3>DFWM value of CuPc. In THG measurements, the three-photon resonance contribution at the Soret band gives rise to higher χ<3>THG value.

Paper Details

Date Published: 14 September 2006
PDF: 10 pages
Proc. SPIE 6330, Nonlinear Optical Transmission and Multiphoton Processes in Organics IV, 63300F (14 September 2006); doi: 10.1117/12.681983
Show Author Affiliations
Beata Derkowska, Nicolas Copernicus Univ. (Poland)
Michal Wojdyla, Nicolas Copernicus Univ. (Poland)
Zouhair Sofiani, POMA Lab., Univ. of Angers (France)
LOPCM, Ibn Tofail Univ. (Morocco)
Robert Czaplicki, Nicolas Copernicus Univ. (Poland)
POMA Lab., Univ. of Angers (France)
Mohammed Addou, LOPCM, Ibn Tofail Univ. (Morocco)
Waclaw Bala, Nicolas Copernicus Univ. (Poland)
Bouchta Sahraoui, POMA Lab., Univ. of Angers (France)


Published in SPIE Proceedings Vol. 6330:
Nonlinear Optical Transmission and Multiphoton Processes in Organics IV
A. Todd Yeates; Kevin D. Belfield; Francois Kajzar, Editor(s)

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