Ag2S quantum dots in the fields of picosecond and femtosecond UV and IR pulses: optical limiting, nonlinear absorption and refraction properties

doi:10.1007/s00340-018-7110-y

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	Ag2S quantum dots in the fields of picosecond and femtosecond UV and IR pulses: optical limiting, nonlinear absorption and refraction properties
	Y.Fu; R.A.Ganeev; C.Zhao; K.S.Rao; S.K.Maurya; W.L.Yu
	2019
发表期刊	Applied Physics B-Lasers and Optics
ISSN	0946-2171
卷号	125 期号:1 页码:10
摘要	We demonstrate strong optical nonlinearities of silver sulfide (Ag2S) quantum dots (QDs) in the ultraviolet range. The 4-nm Ag2S QDs were prepared by chemical method and analyzed using picosecond (800nm and 400nm, 200ps) and femtosecond (800nm and 400nm, 60fs) laser pulses. Our Z-scan measurements show that these QDs have large nonlinear absorption coefficient (10(-3) cm W-1) at 400nm. We also demonstrate the transient absorption and optical limiting in Ag2S QDs. Variations of the signs of nonlinear refractive indices and nonlinear absorption coefficients of QDs are demonstrated by changing pulse width and wavelength of probe radiation.
关键词	silicate-glasses,nanoparticles,nanocrystals,scattering,pbse,Optics,Physics
DOI	10.1007/s00340-018-7110-y
URL	查看原文
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/181722/63386
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	Y.Fu,R.A.Ganeev,C.Zhao,et al. Ag2S quantum dots in the fields of picosecond and femtosecond UV and IR pulses: optical limiting, nonlinear absorption and refraction properties[J]. Applied Physics B-Lasers and Optics,2019,125(1):10.
APA	Y.Fu,R.A.Ganeev,C.Zhao,K.S.Rao,S.K.Maurya,&W.L.Yu.(2019).Ag2S quantum dots in the fields of picosecond and femtosecond UV and IR pulses: optical limiting, nonlinear absorption and refraction properties.Applied Physics B-Lasers and Optics,125(1),10.
MLA	Y.Fu,et al."Ag2S quantum dots in the fields of picosecond and femtosecond UV and IR pulses: optical limiting, nonlinear absorption and refraction properties".Applied Physics B-Lasers and Optics 125.1(2019):10.

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