Spectroscopic investigation of the electro-optic nonlinearity in poly(2,5-thienylene vinylene)

O. M. Gelsen; D. D.C. Bradley; H. Murata; N. Takada; T. Tsutsui; S. Saito

doi:10.1063/1.350401

Spectroscopic investigation of the electro-optic nonlinearity in poly(2,5-thienylene vinylene)

O. M. Gelsen, D. D.C. Bradley, H. Murata, N. Takada, T. Tsutsui, S. Saito

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Abstract

We report the results of a spectroscopic investigation of the quadratic electro-optic nonlinearity in poly(2,5-thienylene vinylene). Electroabsorption spectra closely resemble the second energy derivative of the unperturbed π-π* absorption and show oscillations associated with the strong vibronic features present therein. The dispersion of both the real and imaginary parts of χ(3) (-ω;0,0,ω) has been determined and we find that Re{χ(3)} has a peak value of 7.5×10-9 esu at 1.83 eV and Im{χ(3)} has a peak value of 6.2×10 -9 esu at 1.78 eV. This nonlinearity is responsible for a photorefractive effect under resonant photoexcitation.

Original language	English (US)
Journal	Journal of Applied Physics
Volume	71
Issue number	2
DOIs	https://doi.org/10.1063/1.350401
State	Published - Dec 1 1992

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title = "Spectroscopic investigation of the electro-optic nonlinearity in poly(2,5-thienylene vinylene)",

abstract = "We report the results of a spectroscopic investigation of the quadratic electro-optic nonlinearity in poly(2,5-thienylene vinylene). Electroabsorption spectra closely resemble the second energy derivative of the unperturbed π-π* absorption and show oscillations associated with the strong vibronic features present therein. The dispersion of both the real and imaginary parts of χ(3) (-ω;0,0,ω) has been determined and we find that Re{χ(3)} has a peak value of 7.5×10-9 esu at 1.83 eV and Im{χ(3)} has a peak value of 6.2×10 -9 esu at 1.78 eV. This nonlinearity is responsible for a photorefractive effect under resonant photoexcitation.",

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AU - Gelsen, O. M.

AU - Bradley, D. D.C.

AU - Murata, H.

AU - Takada, N.

AU - Tsutsui, T.

AU - Saito, S.

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PY - 1992/12/1

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N2 - We report the results of a spectroscopic investigation of the quadratic electro-optic nonlinearity in poly(2,5-thienylene vinylene). Electroabsorption spectra closely resemble the second energy derivative of the unperturbed π-π* absorption and show oscillations associated with the strong vibronic features present therein. The dispersion of both the real and imaginary parts of χ(3) (-ω;0,0,ω) has been determined and we find that Re{χ(3)} has a peak value of 7.5×10-9 esu at 1.83 eV and Im{χ(3)} has a peak value of 6.2×10 -9 esu at 1.78 eV. This nonlinearity is responsible for a photorefractive effect under resonant photoexcitation.

AB - We report the results of a spectroscopic investigation of the quadratic electro-optic nonlinearity in poly(2,5-thienylene vinylene). Electroabsorption spectra closely resemble the second energy derivative of the unperturbed π-π* absorption and show oscillations associated with the strong vibronic features present therein. The dispersion of both the real and imaginary parts of χ(3) (-ω;0,0,ω) has been determined and we find that Re{χ(3)} has a peak value of 7.5×10-9 esu at 1.83 eV and Im{χ(3)} has a peak value of 6.2×10 -9 esu at 1.78 eV. This nonlinearity is responsible for a photorefractive effect under resonant photoexcitation.

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 2

ER -

Spectroscopic investigation of the electro-optic nonlinearity in poly(2,5-thienylene vinylene)

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