Nonlinear optics (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the polarization density P responds non-linearly to the electric field E of the light.

To compute n-jet production at NLO, two sets of amplitudes are required: a) n-particle production amplitudes at tree level and one loop; b) (n + 1)-particle production amplitudes at tree level. If the one-loop amplitudes are regularised through dimensional …

2020年7月16日 · 该线性假设只适合于较小位移,强激光作用下所产生的大位移与场强之间的线性关系不再成立。 其中ω0为自然共振频率,而x=0对应于电子的平衡位置。 移情况下为主导项。 只考虑二阶效应,即关注于式中的x3成份,此时偏离平衡位置的恢复力为:。 此时的恢复力强度依赖于位移的方向:电子在正位移时所承受的恢复力大。 在光波的AC电场驱动下,电子在正周期的位移要小于负周 …

2023年3月1日 · The investigations of third-order nonlinear optical (NLO) properties indicate that these materials show different degrees of optical limiting effects. It is surprising that increasing coordination interactions between anion and cation moieties can effectively enhance their third-order NLO properties, which can be attributed to the formation of ...

2009年4月9日 · Nonlinear optical (NLO) crystals BaTeMo 2 O 9 (BTM) with large size and good quality have been grown by the flux method. The connections of the Mo−O octahedral group are presented, and the relationship between the structure …

2019年10月16日 · Full elements of second-order nonlinear optical (NLO) tensor can be completely characterized for an organic NLO crystal for the first time. As-grown bulk N-benzyl-2-methyl-4-nitroaniline (BNA)...

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2021年7月30日 · 非线性光学 (nlo) 晶体材料作为全固态激光器的核心器件，在精密制造、信息处理和医疗等领域具有广泛的应用。 高性能的紫外、可见NLO晶体要求材料同时具备大的二次谐波产生（SHG）系数、大的带隙（Eg）、较大的双折射率（Δ n ）和良好的物理和化学稳定性。

2023年2月16日 · 非线性光学（NLO）开关材料可在外场（如：光、热、压力等）刺激下，NLO性质发生“开-关”两种状态的切换，在光开关和光计算等领域具有重要应用，是非线性光学材料研究的一个重要分支。 热致非线性光开关固态材料在“开-关”两个状态间的切换主要依赖材料本身的相变温度（Tc），然而，目前大多数固态非线性光学开关材料具有固定的相变温度，这严重限制了其应用 …