文献类型：期刊文献

英文题名：Size-controlled oriented crystallization in SiO2-based glasses by femtosecond laser irradiation

作者：He, Xuan[1,2];Fan, Chaxing[1,3];Poumellec, Bertrand[1];Liu, Qiming[2,4];Zeng, Huidan[3];Brisset, Francois[1];Chen, Guorong[3];Zhao, Xiujian[2];Lancry, Matthieu[1]

机构：[1]Univ Paris 11, CNRS, UMR UPS 8182, Inst Chim Mol & Mat Orsay, F-91405 Orsay, France;[2]Wuhan Univ Technol, Sch Mat Sci & Engn, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China;[3]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[4]Wuhan Univ, Sch Phys & Technol, Wuhan 430070, Peoples R China

年份：2014

卷号：31

期号：2

起止页码：376

外文期刊名：JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

收录：;EI(收录号：20141617573054);WOS:【SCI-EXPANDED(收录号:WOS:000331071400030)】；

基金：This work has been done in the frame of a FLAG (Femtosecond Laser Application in Glasses) consortium project with the support of several organizations: the Agence Nationale pour la Recherche (ANR-09-BLAN-0172-01), the RTRA Triangle de la Physique (2008-056T), the FP7-PEOPLE-IIF FemtoNano 908582, the National Natural Science Foundation of China (51272183), and the Hubei Provincial Natural Science Foundation (2012FFA042).

语种：英文

外文关键词：Niobium oxide - Nonlinear optics - Optical properties - Crystal orientation - Femtosecond lasers - Polarization - Silica

摘要：3D nano-crystallization has been investigated with a femtosecond laser beam in 33Li(2)O-33Nb(2)O(5)-34SiO(2) glass by changing the pulse energy and polarization direction. Electron backscattered diffraction was used to characterize the size and the orientation of crystals in cross sections of laser tracks, while second harmonic generation was employed to investigate the nonlinear optical properties of laser lines macroscopically. We are the first, to the best of our knowledge, to reveal that crystals of nano-size were precipitated both at low pulse energy with laser polarization parallel to the laser motion direction and at high pulse energy in the perpendicular case, but they preferred to orientate perpendicularly to the written lines in the former case. (C) 2014 Optical Society of America