论文部分内容阅读
光学平台发展概况
【出 处】
：
激光与光电子学进展
【发表日期】
：
2008年45期
其他文献
In order to realize variable contrast in the minimum resolvable contrast (MRC) measuring target in the visible imaging system, a novel technique is presented, which adopts two integrating spheres to illuminate two sides of target respectively and the diff
本研究测量了各种LiNbO3波导m线光强分布轮廓随时间的变化。结果表明,由陈益新等提出的电场增强硝酸银盐浴法和由贝尔实验室报道的苯甲酸盐浴法制备的离子迁移波导具有较高的抗光损伤能力。当发生光损伤时,这种波导由于平面内散射引起的传输光束的角定可达40°左右。关于波导制备方法与波导抗光损伤能力的关系:(1)如果能使波导中原有金属杂质离子的氧化态更趋稳定,也就是提高Fe~( )/Fe~( )(或Cu~( )/Cu~ ,Mn~( )/Mn~ )比值,那么这种方法制备的波导的抗光损伤能力就高。(2)如果在
期刊
Cavity linewidth narrowing by means of electromagnetically induced transparency in Rb with a longitu
We demonstrate a method for further reducing the cavity linewidth by the application of a small longitudinal magnetic field on the Rb cell. Because of the magnetic field multiple electromagnetically induced transparencies (EITs) are observed. The center E
介绍Fe:KNbO3光折变晶体温度效应(290～380 K)的实验研究，分别给出了在不同实验配置下的两波耦合和特殊切割晶体的自泵相位共轭的测量结果.
Depth perception for night vision (NV) imagery could largely improve scene comprehension. We present a novel scheme to give fused multi-band NV imagery smoothly natural color appearance as well as depth sense from color. Our approach is based on simulatin
High sensitivity D-shaped hole fiber temperature sensor based on surface plasmon resonance with liqu
A high sensitivity D
The mode-locked fluoride fiber laser (MLFFL) is an exciting platform for directly generating ultrashort pulses in the mid-infrared (mid-IR). However, owing to difficulty in managing the dispersion in fluoride fiber lasers, MLFFLs are restricted to the sol
研究了高重心小抛光面的方形工件(抛光面大小30 mm×30 mm, 高90 mm)环形抛光中, 倾覆力矩对工件面形的影响。通过分析方形工件在工件孔中的运动轨迹及受力情况, 发现了工件与工件孔壁碰撞会导致工件倾斜, 高重心的工件在碰撞时倾斜幅度较大, 倾斜角度和工件与工件孔壁间的间隙有关。重心较高的方形工件, 以及工件与工件孔壁间隙的增大都会增加由倾覆力矩导致的面形变凸与畸变。在高重心小抛光面的方形工件侧面粘接玻璃靠体后, 工件的重心降低, 工件孔与工件间的间隙减小, 成功解决了面形变凸与畸变的问题, 面形