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

被引：43
作者：
Martineau, C
Lemercier, G
Andraud, C
Wang, I
Bouriau, M
Baldeck, PL
机构：
[1] ENS, CNRS, Lab Stereochim & Interact Mol, F-69364 Lyon 07, France
[2] Univ Grenoble 1, CNRS, Lab Spectrometrie Phys, F-38402 St Martin Dheres, France
来源：
SYNTHETIC METALS | 2003年 / 138卷 / 1-2期
关键词：
photopolymerization; two-photon absorption; initiator; microlaser;
D O I：
10.1016/S0379-6779(03)00111-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 x 10(-50) cm(4) s photon(-1) at the photoinitiation wavelength (1.06 mum). The efficiency of this new initiator is evaluated by the determination of the threshold of absorbed energy density for polymerization. (C) 2003 Published by Elsevier Science B.V.
引用
收藏
页码：353 / 356
页数：4
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