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Article Dans Une Revue Synthetic Metals Année : 2003

New initiator for two-photon absorption induced polymerization with a microlaser at 1.06 μm

Résumé

Two-photon absorption (TPA) induced polymerization is a very promising way for three-dimensional (3D) microfabrication. However, the necessity to use onerous femtosecond Ti:sapphire lasers appears as a major drawback for this technology. We present a new symmetrical conjugated ketone with terminal amino groups that can initiate TPA photopolymerization of acrylates when irradiated with an inexpensive Nd-YAG microlaser. This compound shows broad band TPA between 800 nm and 1100 nm with a cross-section of 100×10−50 cm4 s photon−1 at the photoinitiation wavelength (1.06 μm). The efficiency of this new initiator is evaluated by the determination of the threshold of absorbed energy density for polymerization.

Dates et versions

hal-01321511 , version 1 (25-05-2016)

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Claude Martineau, G Lemercier, C Andraud, I Wang, M Bouriau, et al.. New initiator for two-photon absorption induced polymerization with a microlaser at 1.06 μm. Synthetic Metals, 2003, 138 (1-2), pp.353-356. ⟨10.1016/S0379-6779(03)00111-5⟩. ⟨hal-01321511⟩
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