Bidirectional parametric amplification in nonlinear left-handed metamaterials
非线性左手材料中的背向参量放大
The non collinear optic parametric amplification using BBO crystal with type Ⅰ phase matched geometry is investigated theoretically.
理论研究了BBO晶体在Ⅰ型相位匹配下非共线情况时的激光参量放大特性。
Analysis result indicates that the localizations of high order band edge modes(BEMs) are also very strong,which means that high efficiency parametric amplification(PA) may be realized using higher order BEMs.
利用一维传输矩阵方法,得到了复合周期结构的线性特征,结果表明:高阶带边模也具有很强的局域特性,从而预见高价带边模也能高效地实现参量放大。
That is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination.
本论文分析了目前常用比例阀的类型、功能、特性，并针对其不足提出新的改进方案，即：以流量放大，电反馈两个原理为基础，通过对流量闭环控制及压力流量复合的计算分析、确定上最小控制压差及流量控制范围，确定主阀结构、功能特性研究等，提出了“流量——负载压力变化——位移修正”的控制原理和压力流量双闭环控制原理，并进一步论述了利用一个比例控制器和一个“电—机械转换器”就可完成独立的压力或流量控制功能以及流量压力复合控制功能。
7μs with a current amplification ratio of 22 3 and energy amplification ratio of 12 5.
5 μH的负载上产生了 2 2 8 1kA的电流 ,电流放大倍数为 2 2 3倍 ,能量放大倍数为 12 5倍 ,电流上升时间为 37 7μs。
one-port parametric amplifiers
单端输出参量放大器
single-varactor parametric amplifier
单变容管参量放大器
parametric amplifier (uncooled)
参量放大器（非冷却）
semiconductor diode parametric amplifier
半导体二极管参量放大器
nondegenerate electron beam parametric amplifier
非简并电子束参量放大器
Study of Gain and Temporal Character of Fiber-optic Parametric Amplifier;
光纤参量放大器增益与时域特性研究
Group velocity matching in femtosecond optical parametric amplification of the KBe_2BO_3F_2
KBe_2BO_3F_2飞秒光参量放大中的群速匹配
Theoretically Study on the Bandwidth of Fiber Optical Parametric Amplifier
光纤参量放大器带宽特性的理论研究
Theoretical Study on Raman Amplifier and Optical Parameter Amplifier Based on Photonic Crystal Fiber;
基于光子晶体光纤的拉曼放大器及光学参量放大器的理论研究
Studies on Chirped Pulse Amplification System with High Repetition Rate and Femtosecond Optical Parametric Amplification System;
高重复率啁啾脉冲放大系统及飞秒光参量放大系统的研究
Study on Optical Parameter Amplifier and Wavelength Conversion Based on Photonic Crystal Fiber;
基于光子晶体光纤参量放大与波长变换的研究
Study on Broadband Femtosecond Optical Parametric Amplification Based on Quasi-Phase Matching;
宽带准相位匹配飞秒光参量放大的研究
Multi-Pass Optical Parametric Chirped Pulse Regenerative Amplification Technology
基于环型腔的泵浦光增强型光参量放大研究
Research on the gain flatness of fiber-optic parametric amplifier with periodic dispersion compensation
周期色散补偿光纤参量放大器平坦性的研究
Dual-Pump Fiber-optic Parametric Amplifier with Periodic Dispersion Compensation
带有周期色散补偿的双泵浦光纤参量放大器
Theoretical Study on the Bandwidth Broadening of Cascaded Fiber Optical Parametric Amplifier
级联光纤参量放大器带宽拓宽的理论研究
Noise figure is minimized by a parametric amplifier
采用参量放大器，即可将噪声系数减低至最低限度。
The non-classical properties of orthogonal coherent state in parametric amplification process are investigated.
研究正交相干态经过参量放大后态的非经典特性。