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| 纳米金属颗粒膜的二次谐波增强效应 | |
| 引用本文： | 易凡,张靖,熊贵光. 纳米金属颗粒膜的二次谐波增强效应[J]. 武汉大学学报(理学版), 1997, 0(3) |
| 作者姓名： | 易凡 张靖 熊贵光 |
| 作者单位： | 武汉大学物理学系 |
| 摘 要： | 纳米尺寸金属颗粒膜可以产生较大的表面二次谐波增强。本文测量了用溅射法制备的钠米尺寸Ａｕ颗粒的反射二次谐波，其增强因子可达１０２数量级，理论计算了局域场因子与波长的关系曲线。对于用Ｎｄ：ＹＡＧ激光器输出的１．０６μｍ波长的基频光，可以获得较强的倍频光的局域场增强，对金属颗粒尺寸对局域场因子的影响进行了计算和分析。 |
| 关 键 词： | 纳米材料，非线性光学，二次谐波，局域场增强 |
ENHANCED-SECOND-HARMONIC GENERATION OFNANOMETER-SIZED METALLICPARTICLES DISPERSED IN SiO2 FILMS |
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| Yi Fan,Zhang Jing,Xiong Gueiguang. ENHANCED-SECOND-HARMONIC GENERATION OFNANOMETER-SIZED METALLICPARTICLES DISPERSED IN SiO2 FILMS[J]. JOurnal of Wuhan University:Natural Science Edition, 1997, 0(3) | |
| Authors: | Yi Fan Zhang Jing Xiong Gueiguang |
| Abstract: | The enhancement of second-harmnoic generation of nanometer-sized gold particles dispersed in SiO2 films has been observed and the local-field enhancement has also been proved. The dependences of local field enhancement factor on optical frequency and parti- cles size has been analized in this letter. |
| Keywords: | nometer - sized material . nonlinear optical second - harmonic generation. local-field enhancement |
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