Nonresonant optical nonlinearity of ZnO composite nanoparticles with different interfacial chemical environments

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	Nonresonant optical nonlinearity of ZnO composite nanoparticles with different interfacial chemical environments
	Wang, RY ; Wu, XC ; Zou, BS ; Wang, L ; Xie, SS ; Xu, JR ; Huang, W
刊名	MATERIALS RESEARCH INNOVATIONS
	1998
卷号	2 期号:1 页码:49
关键词	SEMICONDUCTOR CRYSTALLITES MOLECULES SIZE
ISSN号	1432-8917
通讯作者	Wang, RY (reprint author), Chinese Acad Sci, Inst Phys, Opt Phys Lab, POB 603, Beijing 100080, Peoples R China.
中文摘要	ZnO nanoparticles coated by surfactant molecules were synthesized by microemulsion method. Under proper thermal treatment, a new ZnO/surfactant composite nanoparticles were formed and exhibited an unique optical property. The third-order optical nonlinearity chi((3)) of ZnO composite nanoparticles with different interfacial chemical environment were measured by single-beam Z-scan technique, the sign and magnitude of both the real and imaginary parts of chi((3)) at 790 nm were measured to be: -5.2x10(-16) m(2)/W and 11.6 cm/Gw for ZnO/DBS composite nanoparticles (DBS, dodecyl benzene sulfonate, anionic surfactant); and -2.2x10(-17) m(2)/W, 0.45 cm/Gw for ZnO/CTAB composite nanoparticles (CTAB, cetyltrimethyl ammonium bromide, cationic surfactant). The ultrafast nonlinear response time (similar to 250 fs) measured by time-resolved pump-probe technique at excitation wavelength of 647 nm suggests that the optical nonlinearity below band-gap originate mainly from a rapid electronic polarization process or virtual process such as the optical Stark effect.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/50009]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Wang, RY,Wu, XC,Zou, BS,et al. Nonresonant optical nonlinearity of ZnO composite nanoparticles with different interfacial chemical environments[J]. MATERIALS RESEARCH INNOVATIONS,1998,2(1):49.
APA	Wang, RY.,Wu, XC.,Zou, BS.,Wang, L.,Xie, SS.,...&Huang, W.(1998).Nonresonant optical nonlinearity of ZnO composite nanoparticles with different interfacial chemical environments.MATERIALS RESEARCH INNOVATIONS,2(1),49.
MLA	Wang, RY,et al."Nonresonant optical nonlinearity of ZnO composite nanoparticles with different interfacial chemical environments".MATERIALS RESEARCH INNOVATIONS 2.1(1998):49.