Generation of large fifth-order nonlinear phase shifts by use of lossless χ~((2)) cascaded nonlinear processes 期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Generation of large fifth-order nonlinear phase shifts by use of lossless χ~((2)) cascaded nonlinear processes

作者姓名：	XU Guang QIAN Liejia WANG Tao FAN Dianyuan & LI Fuming . Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai China . State Key Laboratory for Advanced Photonic Materials and Devices Fudan University Shanghai China Correspondence should be addressed to Xu Guang

摘要：	Theinherentthird-ordernonlinearityofmaterialc(3)isnormallyweak.Toaccumulatealargenonlinearphaseshift,highlaserintensityandlongopticalpathinmaterialareneeded.Whilethevalueofnonlinearitycouldbemadelargerneartheregionofabsorptionresonance,astronglosswillbeaccompaniedthroughtheprocessoftwo-photonabsorption.Inordertorealizestrongthird-ordernonlinearitywithcontrollableenergyloss,thec(2)(w;2w,-w)︰c(2)(2w;w,w)cascadingprocesshasbeenproposed,whichisequivalenttothethird-ordernonlinearityc(3)(w;w,w,-w)w…
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