摘要
利用波长为532 nm,脉宽为8 ns的激光研究了咔唑保护的金纳米粒子在二甲苯中的光限幅特性。研究表明,这种金纳米粒子具有很强的光限幅效应。利用基于米氏散射理论的模型分析了光限幅效应,实验及分析表明,强的光限幅效应是由非线性散射引起的。
Optical limiting properties of gold nanoparticles protected by 9-（5-thiopentyl）-carbazole in dimethylbenzene solution is investigated by using 8 ns laser pulses at 532 nm.The experimental results show that the gold nanoparicles possess strong optical limiting behavior.The optical limiting effects are analyzed by using a model based on Mie extinction theory.Theoretical analysis and experimental results imply that the optical limiting mechanisms can be attributed to the nonlinear scattering.
出处
《黑龙江大学工程学报》
2011年第1期88-92,共5页
Journal of Engineering of Heilongjiang University
基金
黑龙江省教育厅项目(11531283)
黑龙江省电子工程高校重点实验室项目(DZZD200801)~~
关键词
光限幅
纳米粒子
表面等离子体共振
Optical limiting
Nanoparticle
Surface plasma resonance
