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In the case of short light pulses irradiance, photovoltaic effect has no effect on the writing and erasing photorefractive gratings in the LiNbO3 crystal.

因此，在短脉冲光入射光折变晶体材料情况下，考虑光生伏打效应与不考虑光伏效应，对短脉冲光在光折变LiNbO3晶体中写入和擦除光栅基本没有影响。

Based on Valley's quasi-cw approximation, the writing and erasing of gratings in materials exhibiting bulk photovoltaic effect on illumination with short light pulses is investigated.

利用G.C.Valley的准连续光近似模型，研究了短脉冲激光在光伏光折变材料LiNbO3晶体中写入和擦除光折变光栅的过程，给出了空间电荷场随时间变化的表达式。

This thesis focuses on the influences of the amplitude and phase of Raman pulses on the measurement precision of the atom interferometers.

在原子干涉仪的研究中，精度分析是其一个重要组成部分。

A method of etching Micro-Grating Structures by ablating nickel plate was studied,which makes use of the interference laser of 351 nm diode-pumped solid-state laser pulses.

利用波长为351 nm的半导体抽运全固态脉冲激光器，采用双光束干涉方法，对金属镍板表面直接刻蚀形成微光栅结构的方法进行了实验研究。

The most common form of UWB is Impulse Radio,which communicates using very short pulses,typically on the order of hundreds of picoseconds.

脉冲无线电是超宽带的最主要形式，它使用脉冲宽度级数为几百皮秒的短脉冲进行通信。

Coupled a ultrashort laser pulses into the fiber probe to serve as near-field optical excitation and acquired their response optical pulse, images of each moment that happened in a few picoseconds or nanoseconds could be obtained only once. The time broaden properties for a 50 ps pulse through a fiber probe were measured by streak camera.

在高时间分辨NSOM研究方面，本文先后建立了以皮秒红外条纹相机和光电倍增管为测量手段的皮秒、纳秒时间分辨NSOM装置，通过采集样品响应光脉冲的时间特性，单次扫描就可完成皮秒、纳秒变化过程中的近场光学图像。

An improved scheme for replication of analogue optical pulses based on active recirculating fiber delay line is proposed.

改进并验证了一种基于有源循环光纤延迟线的模拟光脉冲信号复制技术。

The characteristics of different implementation of the fiber-optic pulse replicators based on different techniques are compared according to the different performance requirements of insertion loss, periodicity and power stability of the output pulses in various applications.

针对常用的多路高速光脉冲复制系统可能的实现形式进行了研究，根据各种应用中所需的插入损耗、输出脉冲周期性与功率稳定性等性能要求，对多种光纤光脉冲复制结构的特点进行了分析比较。

The sideband asymmetry is useful for the research of eliminating the sidebands and acquiring the ideal soliton pulses and so on.

通过对光谱边带不对称性物理机制的分析对如何消除边带效应以获得理想的孤子脉冲具有重要的指导意义。

One sideband of the generated SSBRZ signal is suppressed more effectively without distortion of the optical pulses.

通过合理设置调制器的偏置电压，使产生的SSBRZ信号的一个边带得到更有效的抑制，而且没有引起光脉冲的变形。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。