飞秒激光所致金纳米粒子析出的玻璃非线性吸收; Nonlinear absorptions in Au-nanoparticles-precipitated glasses induced by a femtosecond laser
曲士良 ; 赵崇军 ; 高亚臣 ; 宋瑛林 ; 刘树田 ; 邱建荣 ; 朱从善
刊名物理学报
2005
卷号54期号:1页码:139
关键词非线性吸收 interband transition 三阶极化率 intraband transition 虚部 hot electron contribution 金纳米粒子 飞秒激光 玻璃样品 表面等离子体共振 饱和吸收 热电子 飞秒脉冲
ISSN号1000-3290
其他题名Nonlinear absorptions in Au-nanoparticles-precipitated glasses induced by a femtosecond laser
中文摘要依据Z-scan技术,使用波长532nm的纳秒脉冲,研究了通过聚焦的飞秒脉冲诱导并辅以热处理得到的金纳米粒子析出的玻璃的非线性吸收.观察到金纳米粒子析出的玻璃具有饱和吸收特性.根据局域场效应,对实验结果拟合,得到在接近表面等离子体共振激发情况下,金纳米粒子三阶极化率虚部分别为Imχm^(3)=5.7×10^-7esu.玻璃样品中金纳米粒子的非线性响应主要起源于热电子贡献。; We have investigated, by using Z-scan technique with ns pulses at 532nm, the nonlinear absorptions of Au-nanoparticles-precipitated glasses obtained by irradiation of focused femtosecond pulses with the help of heat treatment. We observed the saturable absorption behavior in Au-nanoparticles-precipitated glasses. We obtain, by fitting to the experimental results I in the light of the local field effect near the surface plasmon resonance, Imx(m)((3)) = 5.7 x 10(-7) esu for the imaginary parts of the third-order susceptibilities for Au nanoparticles. The nonlinear response of Au nanoparticles in the glass samples arises mainly from the hot electron contribution.
学科主题光学材料;晶体
分类号O437;TN248
收录类别ei
语种中文
公开日期2009-09-24
内容类型期刊论文
源URL[http://ir.siom.ac.cn/handle/181231/5479]  
专题上海光学精密机械研究所_激光与光电子功能材料研发中心
推荐引用方式
GB/T 7714
曲士良,赵崇军,高亚臣,等. 飞秒激光所致金纳米粒子析出的玻璃非线性吸收, Nonlinear absorptions in Au-nanoparticles-precipitated glasses induced by a femtosecond laser[J]. 物理学报,2005,54(1):139, 143.
APA 曲士良.,赵崇军.,高亚臣.,宋瑛林.,刘树田.,...&朱从善.(2005).飞秒激光所致金纳米粒子析出的玻璃非线性吸收.物理学报,54(1),139.
MLA 曲士良,et al."飞秒激光所致金纳米粒子析出的玻璃非线性吸收".物理学报 54.1(2005):139.
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