Determination of the two-photon absorpti
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Nicola Pfeffer; Paul Raimond; Fabrice Charra; Jean-Michel Nunzi
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Article
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1993
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Elsevier Science
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English
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The two-photon absorption spectrum of the soluble conjugated polymer poly(3-octylthiophene) is measured in the visible range using the picosecond Kerr ellipsometry technique. The largest two-photon absorption feature peaks at 3.5 eV, which is 0.6 eV above the one-photon absorption peak. It has 0.27