lpj24347

Improving contrast and sectioning power in confocal imaging by third harmonic ge

We present a new optical microscope in which the light transmitted by a sample-scanned transmission confocal microscope is frequency-tripled by SiOx n

Color Variation Reduction of GaN Based White Light Emitting Diodes Via Peak Wave

Color Variation Reduction of GaN-Based White Light-Emitting Diodes Via Peak-Wavelength Stabilization

基于空芯光纤和光纤布拉格光栅的温度应变同时测量传感器

提出一种新颖的温度和应变双参数同时测量的光纤传感器。该传感器由空芯光纤和光纤布拉格光栅级联而成。空芯光纤通过反谐振机理将光限制在空气纤芯内传输,满足谐振条件的光泄露出空气芯,在传输光谱上表现为周期性损耗峰。由于空芯光纤和光纤布拉格光栅的物理机理不同,对外界温度、应变的响应存在差异,利用耦合矩阵则可以

Robust finite time estimation of Markovian jumping systems with bounded transiti

Robust finite-time estimation of Markovian jumping systems with bounded transition probabilities

宇宙激光通讯

美国政府所作的预算削减,将空军每秒1兆位的激光束宇宙通讯的406B计划拖延下来。虽然一些合同承包者在春初放慢或停止了工作,但承包者与空军官员都认为计划不会取消,他们估计到八十年代初进行发射演示的时候花费的总金额将超过3千万美元,宇宙激光系统能同时可靠地发送14幅高分辨率电视图象;其应用将在收集战略和

The role of Cu codoping on the Fe metal clustering and ferromagnetism in Fe dope

We have grown room temperature ferromagnetic Fe, and Fe,Cu-codoped In2O3 films on sapphire substrates by pulsed laser deposition. The magnetization of

Sequential fusion H∞filtering for multi rate multi sensor time varying systems

Sequential fusion H∞ filtering for multi-rate multi-sensor time-varying systems – a Krein space approach

别克凯越1.6L轿车高速行驶时经常自动熄火熄火后无法马上启动需等几秒钟后才能启动着车的故障现象诊断与排除

故障现象:2004款觊越1.6L轿车,高速行驶时经常自动熄火,熄火后无法马上启动,需等几秒钟后才能发动着车。 故障诊断与排除:用上海通用公司的检测仪TECH2读取故障码,没有故障码。又用燃油压力仪测试油压和流量均正常。然后检查点火线圈、喷油器的线路及汽油泵电路均未发现异常,发动机搭铁点也都无松动

常见的电阻器分类及其应用介绍

电阻器的分类也是多种多样的,通常分为三大类:固定电阻、可变电阻、特种电阻。按用途分类有:限流电阻、降压电阻、分压电阻、保护电阻、启动电阻、取样电阻、去耦电阻、信号衰减电阻等;按外形及制作材料分类有:碳膜电阻、硼碳膜电阻、硅碳膜电阻、合成膜电阻、金属膜电阻、氧化膜电阻、实心(包括有机和无机)电阻、压敏

沃拉斯顿棱镜增透膜的研制

为了减小沃拉斯顿(Wollaston)棱镜端面反射以提高棱镜的透过率,研究了沃拉斯顿棱镜增透膜的设计和蒸镀工艺。针对制作棱镜的冰洲石晶体和许多膜料之间的附着力较差,膜层不牢固,以及该棱镜中o,e光对应的基体折射率相差较大等问题,在膜系设计时要兼顾两束线偏振光同时增透的特点,在多次工艺实验摸索出合适的