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A pair of polarity-reversed UWB monocycle pulses is achieved by locating the probe carrier at the positive and negative linear slope of the filter, respectively.

首先利用T-XPM效应实现了超宽带monocycle脉冲，滤波器选择蓝移和红移分别得到一对极性相反的monocycle脉冲。

A novel all-optical method for ultra-wideband monocycle pulses generation based on cross polarization modulation effect in highly nonlinear photonic crystal fiber is proposed and demonstrated.

本文提出并用实验室验证了一种新的全光的基于高非线性光子晶体光纤交叉偏振调制效应产生超宽带单周期脉冲的方法。

The most important motivity to promote the development of the technique of ultrashort laser pulses is its applications.

激光超短脉冲的应用是促进其产生技术发展的一个最重要的动力。

Its third-order nonlinear optical properties were investigated by using a Z-scan technique under nanosecond laser pulses at 532 nm.

应用Z-scan技术研究了该金属团簇化合物在波长为532 nm的纳秒激光脉冲作用下的三阶非线性光学特性。

By using the non-degenerate TPA absorption process between both of pulses, a novel project if explored for compressing and shaping the self-compression pulse induced by FCA, in which shaping of self-compression can be optimized by adjusting the initial delay time and control pulse energy. In addition, the operations of ultrafast all-optical modulation and logic NOR gate are achieved by utilizing the non-degenerate TPA effect.

应用脉冲之间的非简并双光子吸收过程，探索出了对受自由载流子吸收作用而形成的自压缩脉冲进行压缩整形的新方案，通过调节脉冲之间的初始时延和控制脉冲的能量，可以优化自压缩脉冲的质量；另外，应用此效应，也实现了超快脉冲对连续光场的全光调制和超快逻辑非门的操作，在光调制过程中，发现了色散和初始啁啾都将改变所形成的调制暗脉冲的调制深度。

The object of this study is to cancerous and normal cells intimacy of hematoporphyrin derivative for diagnosis and therapy cancer, fluorescence spectra of cancerous and normal cells are measured using a ultrashort pulses laser spectral technique and picosecond time-correlated single-photon counting system.

研究用于癌症诊断与治疗的光敏剂血卟啉(hematoporphyrin derivative， HPD)对人体癌细胞与正常细胞的亲和性，采用超短脉冲激光光谱技术和皮秒时间相关单光子计数系统，测量经血卟啉培养的活体癌细胞与正常细胞的荧光光谱，观测到癌细胞样品在创645nm处具有特有的光谱谱峰；测量不同浓度血卟啉荧光光谱，观测到随着血卟啉浓度的逐渐增大，在645nm处出现的光谱峰也随之显著增强。

The results show that the input pulses have different gain spectra obviously when input power regime is different, both in anomalous dispersion regime and in normal dispersion regime.

结果表明在反常色散区和正常色散区，对应不同的功率区域输入脉冲有不同的增益谱，并且当双折射性质变化时导致增益谱表现出明显的不同。

Effect of power saturation on spectrum expanding in normal dispersion region of microstructured fiber by femtosecond laser pulses.

微结构光纤正常色散区飞秒激光脉冲传输光谱展宽的功率饱和效应。

Through computer simulation, the compression of bright optical pulses by dark solitons in the normal group-velocity dispersion region of single-mode fibers is analyzed both qualitatively and quantitatively.

对单模光纤正群速色散区中基于暗孤子交叉相位调制的亮脉冲压缩进行了定量计算和详细分析。

By using center manifold theorem and normal form of maps, we also present formal proofs of the supercritical flip bifurcation at the bifurcation point. Above this threshold, there is a characteristic sequence of bifurcations, leading to chaotic dynamics, which implies that the dynamical behavior of the single species model with birth pulses are very complex.

利用单参数族映射的中心流形定理、正规型和指数积分函数的性质，得到了具非线性出生率或具密度依赖成熟率的混杂矩阵模型正平衡态的存在性和稳定性、超临界分支以及各种复杂现象甚至混沌。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。