And the second-harmonic intensity auto-correlation method is widely used to measure the ultrashort pulse wave.
二次谐波强度自相关法是被广泛使用的超短光脉冲波形测量的方法。
The second-harmonic generation frequency-resolved optical gating (SHG-FROG) analyzer can be used to exactly measure the pulses characteristics.
二次谐波频率分辨光学门（SHG-FROG）是能够准确测量短脉冲多项特性参量的新技术。
This thesis mainly shows the research of extraordinary optical transmission and second-harmonic generation from sub-wavelength structured metallic film.
本论文主要研究亚波长周期结构金属薄膜中的超传输现象和二阶非线性效应。
Theoretical analyses are presented on the critically phase-matched second-harmonic generation (SHG) in a biaxial crystal with the focused fundamental Gaussian beams.
本文对在临界相位匹配条件下使用聚焦高斯光束在双轴晶体中产生二次谐波进行了理论分析。
Using the macroscopic nonlinear polarization model, we discussed in detail the dynamic evolution behaviors of opt ioal field in coherent driving intraoavity second-harmonic generation (ISHG).
本文利用宏观非线性极化模型，分析了相干驱动内腔二次谐波过程中光场的动力学演化行为。
The effects of group-velocity mismatch and dispersion, third-order nonlinear phase modulation on pulse shape, spectrum distribution and conversion efficiency of second-harmonic pulse were discussed.
详细讨论了群速度失配、群速度色散和三阶非线性相位调制效应对倍频光脉冲波形、光谱及转换效率的影响。
Some examples are discussed for second harmonic heating as well as the minority heating.
最后讨论了二次谐波加热和少数成份离子加热的实例。
Objective To investigate the application of SonoVuecontrast-enhanced ultrasound and second harmonic imaging in liver hemangioma.
目的探讨超声造影二次谐波成像技术在肝血管瘤中的应用。
Objective To discuss the value of second harmonic imaging in diagnosing pancreatic masses.
目的探讨二次谐波技术对胰腺肿块的诊断价值。
Superharmonic imaging is made for biological tissues and compared with the results from fundamental and second harmonic imaging.
对生物组织进行了超谐波成像，并与基波、二次谐波图像对比。
The dynamic velocity taper and induced second harmonic are analyzed which improve the miniature TWT efficiency using computer simulation based on Rowe large signal theory.
本文以罗埃大信号理论为基础，对提高小型化行波管效率的动态速度渐变技术和二次谐波的抑制问题进行了模拟计算分析。
The cause of symmetric inrush is analyzed, and the simulation results show that the ratio of second harmonic in the symmetric inrush is not lower than that in the asymmetric inrush.
同时，分析变压器对称涌流产生的原因，计算说明对称涌流中的二次谐波比并不一定比单侧涌流低。
The optical second harmonic signal was observed using a ND:YAG laser, The mechanism of SHG was discussed.
在Nd：YAG强激光光场的作用下，薄膜样品中观察到二次谐波信号，并分析了二次谐波发生的机理。
A primary study was carried out and the results revealed that phenylurea had fairly strong nonlinearity, its powder second harmonic generation efficiency was 11 times larger than that of urea.
苯基脲具有很强的二阶非线性光学效应，其粉末二次谐波产生效率为尿素的11倍；
However, the multiplicative noise can enhance the fluctuation of fundamental light, meanwhile it can reduce the fluctuation of the second harmonic light.
当激光场中含有乘性噪声时，乘性噪声能增强基波的涨落，同时抑制二次谐波的涨落。
Photon energies of the whole range were calibrated using the second harmonic for high energies and the fermi edge of gold for low energies.
利用纯金样品的二次谐波和费米边分别对高能和低能部分的入射光子能量进行了标定，并给出了系统的能量分辨率。
The material has promising application prospects in fields of optoelectronic switches, nonlinear optical second harmonic, quick response liquid crystal display and the like.
该材料在光电开关、非线性光学二次谐波、快响应液晶显示等方面有广阔应用前景。
According to the nonlinear re-radiation characteristic of semiconductor PN node, the nonlinear node detection system for semiconductor junction targets based on second harmonic reception is designed.
根据非线性半导体p N结再辐射特性，设计了一种基于二次谐波接收的非线性节点探测系统。
Three numerical cases are considered for the loading responses of stratified viscoelastic earth to second degree harmonic load, uniform disc ice load, and last-glacial realistic ice load respectively.
本文设计了三个数值算例分别模拟径向分层黏弹地球对二阶球谐负荷、均厚圆盘负荷和全球末次冰期真实冰负荷的响应。
We have also discussed the effect of the beam divergence on the second harmonic conversion efficiency.
还讨论了泵浦束的发散角对二次谐波转换效率的影响。
Detecting visualization of segmental renal trauma on both second harmonic imaging(SHI)and color Doppler energy imaging(CDEI)before and after enhanced ultrasonography.
分别用二次谐波显像及彩色能量多普勒成像，观察造影前后局部损伤的位置、范围及回声。
Objective: to have an acoustic densitometry (AD) analysis about the relationship between doses and effects in experiment rabbit liver with second harmonic contrast imaging.
目的：利用实验性兔肝对二次谐波成像中的剂量-效应关系进行声学定量分析。
This paper presents a new control strategy to eliminate second harmonic of dc output current in the 3-phase unbalanced network voltage PWM current-source converters (CSC).
提出一种电网电压不对称情况下抑制三相脉宽调制(PWM)电流型变流器(CSC)直流输出电流二次谐波、减少网侧电流低次谐波的控制方法。
The second order harmonic output matching networks are optimized by load-pull method.
并利用负载牵引法对二次谐波匹配网络进行了优化。
The second-order harmonic can change the Normalized Impedance of the resonance cavity, and cause the distortion of Frequency Response;
二次谐波可使谐振腔归一化阻抗发生变化，导致强声发生器频率响应曲线失真；
The second movement is not as "heavy" as the first making it an excellent relief without losing its harmonic brilliance.
第二乐章不像第一乐章那么“重”，这使它在缓和前面的同时而又不失辉煌。
The frequency stability, amplitude stability and harmonic content can be deduced from the second order perturbation solution of that equation.
方程的二阶近似解显示出非线性效应对振荡频率稳定度、振幅稳定度及波形正弦纯度的影响。
It is also found that the elastic modulus only relates to the first anharmonic coefficient, but has no relation to the simple harmonic coefficient and the second anharmonic coefficient.
弹性模量只与第一非简谐系数有关，而与简谐系数和第二非简谐系数无关。
The second part: The application of the harmonic technique in his works.
第二部分：陈培勋作品的和声手法运用。
Making the second section undulator of optical klystron resonant with the higher harmonic of the laser, the harmonic emission can be enhanced.
使光学速调管第二段波动器的磁场参数与光场的高次谐波共振，与对称光学速调管情况相比，可使产生的相干谐波辐射强度提高。
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