Influence of gadolinium doping on low- and high-order nonlinear optical properties and transient absorption dynamics of ZnO nanomaterials

doi:10.1016/j.optmat.2019.109241

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	Influence of gadolinium doping on low- and high-order nonlinear optical properties and transient absorption dynamics of ZnO nanomaterials
	M.Venkatesh; R.A.Ganeev; K.S.Rao; G.S.Boltaev; K.Zhang
	2019
发表期刊	Optical Materials
ISSN	0925-3467
卷号	95 页码:9
摘要	Doping of materials by suitable additives can dramatically modify the physical characteristics of the complex systems. In this paper, we investigate the role of gadolinium concentration on the linear, nonlinear optical properties and transient absorption dynamics of ZnO and Al-doped ZnO. The characteristics of the mentioned materials with different dopant concentrations are evaluated using absorption spectroscopy, Z-scan and pump-probe technique with femtosecond laser pulses at 800 and 400 nm wavelengths. The nonlinear absorption is increased in Al-doped ZnO compared to pure ZnO at 800 nm wavelength. Gadolinium dopant demonstrated a significant reduction in nonlinear refractive index and absorption of Al-doped ZnO but could not influence pure ZnO. The transient absorption dynamics of ZnO and Al-doped ZnO illustrated the decrease of response time with dopant concentration. We also generated high-order harmonics using nanosecond heating pulses to generate laser plasmas and femtosecond driving pulses propagating through the plasmas. Laser plasma was generated from an ablated Gd-doped ZnO and the high-order harmonics were studied by varying the delay between heating and driving pulses.
关键词	thin-films,z-scan,Materials Science,Optics
DOI	10.1016/j.optmat.2019.109241
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63030
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	M.Venkatesh,R.A.Ganeev,K.S.Rao,et al. Influence of gadolinium doping on low- and high-order nonlinear optical properties and transient absorption dynamics of ZnO nanomaterials[J]. Optical Materials,2019,95:9.
APA	M.Venkatesh,R.A.Ganeev,K.S.Rao,G.S.Boltaev,&K.Zhang.(2019).Influence of gadolinium doping on low- and high-order nonlinear optical properties and transient absorption dynamics of ZnO nanomaterials.Optical Materials,95,9.
MLA	M.Venkatesh,et al."Influence of gadolinium doping on low- and high-order nonlinear optical properties and transient absorption dynamics of ZnO nanomaterials".Optical Materials 95(2019):9.

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