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期刊论文
Multi-photon-absorption-induced birefringent grating in azobenzene-doped polymethyl methacrylate optical fibres
JOURNAL OF OPTICS A: PURE AND APPLIED OPTICS (2002) L5-L7，-0001，（）：
Birefringent gratings induced by absorbing multi-photons at 532 nm in azobenzene doped polymethyl methacrylate(azo-PMMA)fibres were investigated.The maximum photo-induced birefringence observed from the fibre is about 3.0×10−5. The two-photon absorption coefficient β of the azo-PMMA at 532 nm obtained by the Z-scan method is 10.2cm GW−1, and the birefringence response time of the azobenzene is 10 μs.
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