自由电子激光,free electron laser
1)free electron laser自由电子激光
1.Go further into the primary theory offree electron laser;自由电子激光的初级理论探讨
2.spontaneous emission offree electron laser with an electrostatic wiggler;静电摇摆器自由电子激光的自发辐射
3.The efficiency enhancement mechanism of far infraredfree electron laser(FIR FEL) with a reverse tapering waveguide is theoretically investigated.提出使用渐变间隙的矩形波导提高远红外自由电子激光器效率的新思想。
英文短句/例句
pton type free-electron laser康普顿自由电子激光器
2.E-beam-pumped free-electron laser电子束抽运自由电子激光器
3.THE SPONTANEOUS EMISSION SPECTRUM OF A NOVEL WIGGLER FREE ELECTRON LASER一种新型摆动器自由电子激光的自发辐射谱
4.Study on Irradiation Effects of Quantum Well Material Caused by Free Electron Laser;自由电子激光对量子阱材料的辐照效应研究
5.Numerical Investigations of High-Gain Short-Wavelength Free-Electron Laser;高增益短波长自由电子激光的数值研究
6.Study on Smith-Purcell Effect Free-electron Laser;史密斯—帕塞尔效应自由电子激光的研究
7.Development of Hybrid Wiggler for Free Electron Laser (FEL)用于自由电子激光器(FEL)的混合型波荡器研制
8.The effect of divergence of the incident electron beam on the gain of FEL is analysed.分析了入射电子束的发散性对自由电子激光器增益的影响。
9.Study on the Doped-semiconductors and Quantum Well Materials Irradiated by the Free-electron Lasers;自由电子激光对掺杂半导体及半导体量子阱材料的辐照研究
10.This method can also be used with the harmonic wave radiation in FEL.这种处理方法也适用于自由电子激光器的谐波辐射.
11.Cerenkov free-electron laser device emitted coherent radiation for the first time in China in 1990. It has come up to advanced world level in the late 1980"s.契仑柯夫自由电子激光装置,1990年在国内首次出光,达到八十年代国际同类装置先进水平。
12.The controlling of optical field chaos in a storage ring free-electron laser oscil-lator is discussed by using a phenomenal model.用唯象理论模型讨论了储存环型自由电子激光器光场混沌的控制问题。
13.Electron-Atom Free-Free Transition in the Presence of a Bichromatic Laser Field双色激光场中电子对原子的自由—自由跃迁
14.nuclear charged self-sustaining laser核充电的自激激光器
15.two-degree of freedom laser gyroscope二自由度激光陀螺仪
16.bound-free laser束缚-自由系统激光器
17.An Yb-doped large-mode-area photonic crystal fiber mode-locking laser with free output coupler自由耦合输出的大模场面积光子晶体光纤锁模激光器
18.An electrically neutral excited state of an insulator or semiconductor, often regarded as a bound state of an electron and a hole.激子由于吸收光子在固体中产生的可移动的束缚的电子-空子对
相关短句/例句
FEL自由电子激光
1.Optimization of Hefei Soft X-RayFEL Photocathode Injector;合肥软X射线波段自由电子激光注入器模拟优化
2.The Synchronization System of Storage RingFEL Coherent Harmonic Experiment;储存环自由电子激光相干谐波实验的同步系统
3.Preliminary Design of CompactFEL Terahertz Radiation Source;基于自由电子激光的小型太赫兹源初步设计
3)Free-Electron Laser自由电子激光
1.Measuring Bunching of Electron Beam inFree-Electron Laser by Coherent Transit Radiation;利用相干渡越辐射测量自由电子激光的群聚
2.Using energy-chirped electron beam free-electron laser to amplifiy chirped pulse;能量啁啾电子束自由电子激光放大啁啾脉冲
3.In this paper, we present a general theory of the double-undulator free-electron laser, in which an additional undulator with period close to the beam electron betatron oscillation period in the main undulator is introduced.给出了双波荡器自由电子激光器的通用理论 。
4)Free electron laser(FEL)自由电子激光
5)FEL自由电子激光(FEL)
6)free electron laser自由电子激光器
1.Imaging theory and development of THzfree electron lasers;太赫兹自由电子激光器的成像原理及进展
2.A Ramanfree electron laser(FEL) beam with a pseudospark discharge has been simulated numerically by nonlinear model.采用非线性模型对拉曼自由电子激光器进行数值模拟 ,发现虚火花束源自由电子激光器可以去掉导引磁场 ,用小周期摇摆器 ,实现器件的小型化和高功率。
3.This paper reports an analysis of problem about impedance match of pseudospark e-beam source offree electron laser and the experiment results on compact device without pulse transmission line.分析了自由电子激光器的小型虚火花电子束源在去掉脉冲传输线的情况下的阻抗匹配问题 ,并对此进行放电实验。
延伸阅读
自由电子激光器利用泵浦场被相对论性电子束受激散射产生相干辐射的装置。泵浦场可以是电磁波,也可以是空间周期性的横向静磁场或静电场。由于经过两次多普勒频移,相干辐射的波长比原来泵浦场的波长近似短一个αγ2的因子。λ埄λ0/αγ2,λ0为泵浦场的波长;γ为电子束的相对论性因子,(c为光速,v为电子速度)。对于电磁波泵浦场,α为4,对于静泵浦场,α为2。由于λ0和γ都可以改变,自由电子激光器工作的波长范围很宽,可以从远红外 (25微米以上)一直到真空紫外(0.2微米以下)。此外,由于散射过程直接将电子的动能转换成辐射能,有可能达到较大的功率和较高的效率。自由电子激光器同时具有这些优点的原因,在于它以自由电子进行工作,这与利用束缚电子在能级之间的跃迁来工作的普通激光器有很大的不同。自由电子激光器通常由三部分组成:电子束源、泵浦场和光频谐振腔。第一次成功的实验是1977年在美国斯坦福大学进行的,得到了波长为3.4微米的激光,图为其实验装置。自由电子激光器的理论和实验都还处于研究阶段。一般认为,它在远红外和真空紫外这两个光谱区是一种很有希望的可调大功率相干光源。