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In this article,the Micro Channel Plate Electron Multiplier is studied to carry out the micro current multiplication pro......
The Effects of Fabrication Errors on the Dispersion and Gain of a W Band rectangular Staggered Doubl
A three dimensional linear theoretical model for describing the beam-wave interaction in a rectangular staggered double-......
A two-stage narrow linewidth fiber amplifier with all-fiber structure based on the technique of master oscillator power ......
Cooperation is pervasive and constitutes the core behavioral principle of human social life.Using functional magnetic re......
会议
分析了由于相对论电子在wiggler内传播过程中,相对论因子丁不断地减小,引起辐射频率移动,致使激光器的增益下降。提出采用空间周期......
给出了带轴向场自由电子激光器的增益,并讨论了轴向场的效应。...
对自由电子激光的色散关系进行理论分析。通过自由电子激光摆方程推导出线性增长区增益系数和折射率(复折射率的虚实部),并证明增......
采用Hirota方法研究了描述超材料中电磁波传输的非线性薛定谔方程,解析得到了线性增益和非线性吸收平衡下两个精确的空间啁啾暗孤......
为探究腔内各气体的压强比对激光陀螺特性的影响,从等离子色散函数出发,探究气压气比对环形腔内光强调谐曲线的影响,同时使用自制......
用二列脉宽为60ps的连续锁模Nd:YAG激光的倍频光在掺Ce的KNSBN晶体中进行二波耦合.当泵浦光脉冲迟于信号光脉冲到达晶体,或泵浦光......
基于半导体光放大器（SOA）的环形腔激光器可在超过100 nm的调谐带宽内实现全带宽范围的兆赫兹级调谐，且输出激光信噪比高、平坦度好，因......
给出了脉冲展宽/压缩比与线性啁啾量之间的关系式，然后通过对放大过程中脉冲宽度和啁啾量变化情况的分析，得到了啁啾脉冲放大后最窄......
报道了用单光子激发产生Ｋ2 23Πｇ-ｘ3∑ ｕ跃迁扩散带的实验结果，讨论了此扩散带发射增益特性随温度和缓冲气体压力等条件的变化规律。实......
本文首先用等压升温模型导出体点火数值计算的经验增益公式,然后用相似模似解数值计算了在考虑与不考虑α粒子的自加热情况下的增......
运用时域太赫兹波谱法,低温(10 K)高电场下本征砷化镓中受飞秒激光脉冲激发的电子所辐射出的太赫兹波被准确地测量出来。从样品中......
对两级串级拉曼光纤放大器的两种新的抽运方式进行了数值模拟。在数值模拟的基础上,对相同抽运功率下两种抽运方式的拉曼光纤放大......
阐述了掺铒铌酸锂晶体的光学性能.对由该材料制成的光放大器进行了理论分析.由此可以得出只要晶体的质量足够好.那么制成有实用价......
合成了铒镱共掺的三元配合物［Er1/2Yb1/2(HFA)3(TPPO)2］，并将其掺杂在聚甲基丙烯酸甲酯(PMMA)中，制备了铒镱共掺的聚合物光波导有源材......
获得了He-Ne 543 nm激光线小信号增益系数随放电管中氦氖气体的配比、总气压及放电电流的变化关系。找出上述三参数的最佳值,并做......
对比分析了量子阱材料增益谱及其折射率变化谱随阱宽、应变和载流子浓度的变化特性,在此基础上以两谱线3dB谱宽交叠区面积为度量,......
针对室内可见光通信中光学天线存在的视场小、接收面光能分布不均匀,以及低功率光源条件下接收功率低的问题,设计了作为可见光通信......
为了提高Cu耐GaIn合金腐蚀的性能,采用多弧离子镀在纯Cu表面溅射Cr涂层和Al涂层.再利用原位反应和溶胶凝胶法制备出Cr/Cr2 O3/Al2 ......
The design concept of semiconductor optical amplifier(SOA)and gain chip used in wavelength tunable lasers(TL)is discusse......
Metabolic disturbances associated with antipsychotic drug treatment in patients with schizophrenia:S
Metabolic disturbances and obesity are major cardiovascular risk factors in patients with schizophrenia,resulting in a h......
Ⅰ.Introduction Nowadays researches about The Great Gatsby mainly focus on its writing techniques and “the American ......
There is a constant growth in the demand of data information transmission capacity, that is, more and more people send d......
Sheep meat production in the dry tropics of Mexico is low in the dry season, <span>due to lack of forage, therefore, str......
A good teacher neither frightens nor continually criticizes their class. Rather， they have positive relationships built o......
【Abstract】English vocabulary is one of three essential factors that compose English language knowledge. Vocabulary is ......
Abstract A statistical analysis was conducted on the feeding behavior of 106 York breeding pigs. Pearson correlation ana......
Association of gestational anemia with pregnancy conditions and outcomes: A nested case-control stud
BACKGROUND Gestational anemia is a serious public health problem that affects pregnant women worldwide.Pregnancy conditi......
“获得感”指广大人民群众深切享受社会主义事业改革发展成果的一种幸福感,但又有别于幸福感,强调一种真切实惠的获得,或是一种实......
A wideband high-gain and low-profile metasurface antenna is proposed by analyzing characteristic quantities and paramete......
We investigate optical force on a graphene-coated gain microparticle by adopting the Maxwell's stress tensor method.It ......
Association between pre-pregnancy body mass index and gestational weight gain and the risk of preecl
Objective:To analyze the relationship between body mass index(BMI)before pregnancy and gestational weight gain throughou......
针对拉曼驱动场下的四能级理论模型，讨论了实现无吸收、高折射率的条件，并分析了探测场及相干激发场的线宽对介质的折射率及增益的影......
在Ｎｄ：ＹＬＦ单纵横激光器腔内调Ｑ脉冲达到某个预定的强度之后，腔内引入附加的损耗使腔内增益与损耗相平衡，净增益为零，这时腔内光强维持恒定，激光......
报道了用单光子激发产生Ｋ２２＾３Пｇ－ｘ＾３∑＾＋ｕ跃迁扩散带的实验结果，讨论了此扩散带发射增益特性随温度和缓冲气体压力等条件的变化规律，实验测得了１．２％ｃｍ＾－１的......
In this paper, a rainfall-runoff modeling system is developed based on a nonlinear Volterra functional series and a hydr......
“National Treasures: An Exhibition of Collections of the National Museum of China” has toured around the country since......
Influence of maternal body weight before pregnancy and maternal weight gain during pregnancy on pregnancy ......
Slow and fast light in quantum-well(QW)and quantum-dot(QD)semiconductor optical amplifiers(SOAs) using nonlinear quantum......
This paper presents a novel approach for designing a reconfigurable variable gain amplifier(VGA) for the multi-mode mult......
Mid-infrared (IR) detectors based on the emerging low-dimensional (two-dimensional and quasi one-dimensional) materials ......
Objectives The video head impulse test(vHIT)is used as a measure of compensation yet it’s stability in patients with ve......
中国的草莓市场广阔,全国各地的草莓培育基地逐年增加。然而,草莓在栽培期间极其容易遭受病害侵袭而导致大规模减产。草莓白粉病对......
本文在探索具有固有损耗的微球与锥形光纤耦合系统的光学特性的基础上 ,提出和研究了在微球中具有增益介质或非线性介质的耦合系统......
The annual top ten events in China's basic research for the year 2009 were unveiled on January 13th,2010. With a view to......
