研制出国内第一台LD泵浦OF耦合NYAB自倍频激光器,产生0.531 μm的线偏振绿色激光。基横模运转,阈值泵浦功率为14 mW,输出功率达3.6......

简要回顾了高功率光纤激光的发展历程,以高功率光纤激光的“代表作”——万瓦级单模光纤激光为例,深入剖析了结构和参数特征。随后......

高亮度的钠导星是实现大气波前畸变精准探测的重要条件。已有研究表明,钠导星的后向共振荧光散射强度与大气传输效率、地磁场、季......

介绍了适合高光束质量高平均功率的薄片型DPL原理,给出了设计原则并进行了实验.激光介质采用Nd:YAG,厚1 mm,增益区面积5 mm×7 mm,......

对大功率光纤激光器空间多点抽运模型进行了算法研究。通过对空间多点抽运模型的特点进行分析，推导出一种近似快速解法。这种解法能......

We demonstrate the generation of wavelength-tunable deep-ultraviolet pulses in a small-mode-area hollow-core fiber fabri......

Yellow lasers(∼565–590 nm)are of tremendous interest in biomedicine,astronomy,spectroscopy,and display technology.So f......

Brillouin spectroscopy is an important topic and powerful tool in modern optics,as the acquisitions of acoustic velociti......

...

Recent progress in ultrafast lasers,ul-trafast X-rays and ultrafast electron beams has made it possible to watch the mot......

The method to pump the FBG written into an Er3+-doped optical fiber is proposed to increase the group velocity of a prob......

该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......

对液压泵的常见故障及常用监测方法进行了分析，提出将静电传感器技术运用到液压系统在线监测中。研究了液压泵油液在线监测机制、磨......

In this paper, a mathematical model of the photovoltaic(PV) pumping system s main components is firstly established.Then......

介绍了变频调速的基本原理及泵和管网的基本特性,对变频器控制水泵的节能原理作了分析,并以RH回水系统工程为例,介绍了变频器在RH......

针对有机朗肯循环(Organic Rankine Cycle,ORC)中电动工质泵耗功占膨胀机输出功比例较大的问题.提出一种多级气动液压泵,该泵利用......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

目的 对患者持续48 h微泵化疗弓l起静脉炎的原因进行分析,寻求恰当护理措施.方法 在321例微泵治疗患者中,对其中30例发生静脉炎患......

Typically,liquid pump and liquids mixer are two separate devices.The invention of piezoelectric pump makes it possible t......

The effects of mineral admixtures on fluidity,mechanical and hydrational exothermic behavior were studied.The results sh......

The configuration of the novel three-stage L-band erbium-doped fiber amplifier with very large and flat gain and very lo......

泵是电厂的重要辅助设备，由于电厂使用的泵类产品种类多，泵的选择直接影响电厂的运行和经济效益。论述了选择泵类产品的额定流量、扬......

Numerical simulations of 3D turbulent flow in a large-bore axial-flow pump coupled with half-elbow suction sump were per......

SPASER是所报道的最小的、第一个在可见光或更宽的波长范围内工作的纳米级的有源器件。采用双稳态方法，将SPASER技术引入到改进的MI......

Double-suction centrifugal pumps have been applied extensively in many areas,and the significance of pressure fluctuatio......