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Article Dans Une Revue Physical Chemistry Chemical Physics Année : 2012

Excited state absorption : a key phenomenon for the improvement of biphotonic based optical limiting at telecommunication wavelengths

Résumé

Spectroscopic properties, two-photon absorption (TPA) and excited state absorption (ESA), of two organic cyanine dyes and of a ruthenium based organometallic cyanine are compared in order to rationalize their similar ns-optical power limiting (OPL) efficiency in the telecommunication wavelength range. The TPA contribution to the ns-OPL behavior is higher for both organic cyanines, while the main process is a TPA-induced ESA in the case of the organometallic system, in which the ruthenium induces a broadening of the NIR-ESA band and resulting in a strong spectral overlap between TPA and ESA spectra.
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hal-00833259 , version 1 (26-11-2019)

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Quentin Bellier, Nikolay S. Makarov, Pierre-Antoine Bouit, Stéphane Rigaut, Kenji Kamada, et al.. Excited state absorption : a key phenomenon for the improvement of biphotonic based optical limiting at telecommunication wavelengths. Physical Chemistry Chemical Physics, 2012, 14 (44), pp.15299-15307. ⟨10.1039/C2CP40779E⟩. ⟨hal-00833259⟩
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