超短脉冲
- 网络ultrashort pulse;H-G beam;ps and sub-ps
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近年来,随着超短脉冲激光技术的迅速发展,脉冲相位共轭技术,尤其是fs脉冲相位共轭技术,愈来愈受到重视。
With rapid development of ultrashort pulse laser techniques , pulse phase conjugate techniques , especially femtosecond phase conjugate techniques , are gaining increasing attention .
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超短脉冲染料放大器中的参数研究
Investigation of parameters in a ultrashort pulse dye laser amplifier
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清华大学汤姆逊散射超短脉冲X射线源研究
Researches of Thomson scattering ultra-short pulse X-ray source at Tsinghua University
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500fs超短脉冲激光对CCD探测器的破坏效应
Damaged effect on CCD detector irradiated by 500 fs laser pulse
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CS2在超短脉冲作用下的喇曼猝灭
Investigation of Raman quenching in CS_2 under the action of ultrashort light pulses
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用腔倒空Nd:YAG激光器对fs超短脉冲的同步放大
Synchronous amplification of fs optical pulses by cavity-dumped Nd : YAG laser
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激光与相对论电子束的康普顿散射可产生高亮度、超短脉冲、辐射波长可调、峰值亮度高的准单色、极化X射线。
A compact laser synchrotron source ( LSS ) at Peking University is proposed as a means of generating tunable , high brightness , ultra-short pulse of X rays .
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基于Sagnac干涉仪的紫外超短脉冲放大技术
Ultra - short pulse amplification based on Sagnac interferometer
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3μmDFB半导体激光超短脉冲的产生及其压缩
Generation and Compression of 1 . 3 μ m Ultrashort Pulses from a DFB Diode Laser
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超短脉冲电流处理Fe(78)Si9B(13)的原子间力与脆性的研究
Investigation of the force between atoms and brittleness of Fe_ ( 78 ) Si_9B_ ( 13 ) treated by ultra-short pulsing current
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本文给出了光栅在超短脉冲照射下其瞬时Fresnel衍射光场的解析解。
An analytical expression is given to study the temporal Fresnel diffraction field of a grating illuminated by an ultrashort pulsed-laser beam .
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利用单光子入射方法测量了高强度超短脉冲激光(130fs,1016Wcm2744nm)与固体等离子体相互作用产生的超快(ps)硬X射线(>30keV)能量连续谱。
Utilizing single photon incident method , the hard X ray continuum from interaction of intense ultrashort laser ( 130 fs , 10 16 W / cm 2,744 nm ) with solid plasma is measured .
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超短脉冲光纤激光器在非线性光学、超快光学等领域,尤其在光时分复用系统及光波分复用系统OTDM/WDM中有着广泛的应用。
Ultra-short pulse fiber lasers have been shown great potential application in nonlinear optics and ultrafast optics , especially in OTDM / WDM systems .
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在第二部分我们分别研究了超短脉冲激光和长脉冲激光在不同分子介质中传播时的一步和两步TPA及其光限幅行为。
In the second part , we investigate respectively the one-step and two-step TPA and optical limiting behavior of the ultrashort and microsecond long laser pulses .
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高能量超强超短脉冲激光的出现,迅速地推动了惯性约束核聚变(ICF)研究的发展。
The advent of high-energy ultra-short and - intense laser pulse has greatly promoted the progress in the research of inertial confinement fusion ( ICF ) .
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用Darboux变换法,对描述超短脉冲在光纤中传输的Hirota方程进行详细地讨论,给出Hirota方程N-孤波解的普遍表达式。
The N-soliton solutions for the integrable Hirota equation are presented by using the Darboux transformation method .
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实验研究了超短脉冲激光辐照固体靶产生的超热电子温度,所用方法是测量超热电子在固体中韧致辐射产生的硬X射线(>30keV)能量连续谱。
The temperature of hot electron generated from the solid target irradiated by ultrashort pulse laser has been studied experimentally . The method is to measure the hard X-ray continuum generated by the high energy electron bremsstrahlung process in solid region .
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但是KrF激光器在放大超短脉冲激光时也需要解决一些关键问题,最主要是提高放大介质储能的利用率。
KrF excimer is the best medium in UV ultra short pulse amplification for its small saturation energy and high contrast ratio accessible .
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结合Saha方程,建立了一个超短脉冲激光与固体密度等离子体相互作用的动力学过程中电子温度和电子密度随时间变化的简单模型。
Using Saha equation , a simple model is proposed for the dynamics of interaction between ultrashort laser pulses and solid targets .
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193nm准分子激光及超短脉冲激光角膜切削
Mechanism of action of Excimer Laser and Femtosecond Ultrafast Laser on Cornea
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近年来,随着超短脉冲技术的不断发展,半导体可饱和吸收镜(SESAM)已经成为产生超短脉冲的被动锁模激光器的重要组成部分之一。
Recently , semiconductor saturable absorber mirror ( SESAM ) devices have become an important component of ultrafast passive mode-locked laser sources .
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用扫描电镜(SEM)研究了氟化镁在800nm超短脉冲激光作用下的单枪表面烧蚀形貌。
Single-shot damage morphology of magnesium fluoride induced by femtosecond laser pulse was studied with scanning electron microscope ( SEM ) . The laser pulses used were 800 nm central wavelength .
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利用Wigner分布函数,导出时间域内部分相干超短脉冲光束在近轴色散光学系统中传输的二阶相关函数解析公式。
By using the Wigner distribution function , an analytical propagation formula of the correlation function for partially coherent ultrashort pulsed beams in temporal domain through optical system with dispersion is derived .
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OKEM在产生超短脉冲激光及压缩脉冲方面有许多重要的应用。
OKEM finds a lot of important applications in the generation of ultrashort pulse and pulse compression .
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冲击雷达发射脉冲宽度极窄的超短脉冲,多为连续波,通常是ns或者ps量级。本文主要研究了冲击雷达UWB信号的产生和发射技术,以及对发射信号的编码。
The impulse radar launches the extremely narrow pulse width of ultrashort pulse , whose magnitude usually is ns or ps. This paper mainly studies the technology of the radar signal generation and emission , as well as the emission signal encoding .
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超短脉冲强激光与团簇的相互作用已被证明能够产生能量高达MeV量级的高能离子和中子以及非常强的X射线辐射。
Very intense X ray emission , high energy ions and neutrons with energies up to MeV have been produced in the interaction process of ultrashort laser pulses with atomic clusters . In this paper , the concept of the atomic clusters is introduced and their formation described .
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实验结果证实了模拟计算的正确性,得到了最佳充气气压比例,获得了脉宽为2ns,功率约0.5MW的TEACO2激光超短脉冲列。
The calculation is confirmed by the experimental results . A TEACO_2 ultrashort laser pulse produced by passive mode-locking with a 2ns pulse width and a 0.5 MW power is obtained .
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采用预估校正的时域有限差分法(FDTD)求解全波矢Maxwell-Bloch方程组,我们对超短脉冲激光在有机分子介质4,4′-二甲氨基二苯乙烯中的共振TPA过程进行了模拟。
By solving numerically the full-wave Maxwell-Bloch equation with the predictor-corrector FDTD method , we investigate the propagation of the ultrashort laser pulses in the organic 4 , 4 ' - bis ( dimethylamino ) stilbene molecules under the condition of TPA .
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利用超短脉冲激光作为记录光源可以在瞬间将高速运动微粒冻结的原理,建立了同轴Fraunhofer远场全息测试系统,研究了在爆轰加载下物质的微射流现象。
Based on the principle of freezing high velocity particles , an in line Fraunhofer far field holography measurment system , which uses the ultra short pulse laser as the recording light source , is constructed . The metal micro jet is loaded by detonation .
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采用飞秒超短脉冲激光和XUV间的交叉关联技术,从不同激光强度下、与激光线性极化方向成0°或180°方向上测得的光电子能量积分谱,可以重建XUV的频率和强度时间分布。
Using a cross correlation between femtosecond laser and attosecond XUV , such profiles can be reconstructed from photoelectron energy spectra measured with two different laser intensities at 0 ° and 180 ° with respect to the linear laser polarization .