%0 Journal Article
%T Excited--state nonlinear optical properties of metal cluster W$_{2}$Ag$_{4}$S$_{8}$(dppf)$_{2}$<br>金属团簇化合物W2Ag4S8(dppf)2激发态非线性光学性质
%A DONG Bin ZU Jifeng GAO Yachen SONG Yinglin LEI Mingkai
%A <br>董斌
%A 祖继锋
%A 高亚臣
%A 宋瑛林
%A 雷明凯
%J 材料研究学报
%D 2004
%I 
%X The nonlinear optical effect of metal cluster compound W2Ag4S8(dppf)2 was investigated using frequency-doubled, Q-switched Nd-YAG pulse laser system with wavelength of 532 nm and pulse width of 8 ns. The cluster W2Ag4S8(dppf)2 possessed reverse saturation absorption and self-focusing refraction. The nonlinear absorption and nonlinear refraction of the cluster W2Ag4S8(dppf)2 were explained with excited-state theory. The theoretical results are in agreement with the experimental data. The ratio of cross-section of the absorption of the excited-state to that of the ground-state Ka and the ratio of refraction volumes of the excited-state to that of the ground-state Kr were gained based on their simulation of numerical value. The effective third-order susceptibility X(3) was deter mined for the cluster. The experiment results show that the cluster W2Ag4S8(dppf)2 has good optical limiting character for nanometer pulse.
%K inorganic non-metallic materials
%K metal cluster compound
%K Z-scan
%K nonlinear optics
%K excited-state absorption
%K excited-state refraction<br>无机非金属材料
%K 金属团簇化合物
%K Z扫描
%K 非线性光学
%K 激发态吸收
%K 激发态折射
%K 金属团簇
%K 化合物
%K 激发态
%K 线性光学性质
%K metal
%K cluster
%K 比较
%K 效果
%K 限幅
%K 激发脉冲
%K 纳秒
%K 脉宽
%K 三阶极化率
%K 物理意义
%K 阐述
%K 折射度
%K 比值
%K 基态吸收截面
%K 数值模拟
%K 数据一致
%K 实验
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=C101C4C04993B4D94FCD8446E6CBEB3B&aid=0B1FEB8ECBC16EAE&yid=D0E58B75BFD8E51C&vid=13553B2D12F347E8&iid=B31275AF3241DB2D&sid=C6FC2A9EA7E6C4B9&eid=B7DE0F3CA34DA149&journal_id=1005-3093&journal_name=材料研究学报&referenced_num=0&reference_num=8