6 March 2013 Two-photon absorption of hydrocarbons at visible wavelengths
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The two-photon absorption properties of brunched π-conjugated hydrocarbons at visible wavelengths, up to 400 nm measured by using the femtosecond open-aperture Z-scan method are presented. The hydrocarbons, phenylethynylsubstituted benzenes, shows moderate (several hundreds GM) or very large (~20,000 GM) two-photon absorption cross sections, suggesting such a hydrocarbons can be efficient two-photon absorption chromophores in the wavelength region.
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Kenji Kamada, Kenji Kamada, } "Two-photon absorption of hydrocarbons at visible wavelengths", Proc. SPIE 8622, Organic Photonic Materials and Devices XV, 86220H (6 March 2013); doi: 10.1117/12.2003455; https://doi.org/10.1117/12.2003455

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