We all know that the output of ultraviolet ( uv ) laser mostly depends on the conversion of nonlinear frequency , thus a new kind of excellent nonlinear optics ( nlo ) crystal is very important for the output of new wavelength 紫外波段激光的输出主要采用频率变换技术来实现，因此一种好的非线性光学晶体对于产生新的波长是非常重要的。
Seismological , astronomical and tidal information , ultraviolet ( uv ) index , press releases , educational resources , information on radiation monitoring and time services are available to meet different needs of the public 此外，网站也因应市民的不同需求提供授时服务、紫外线指数、地震、潮汐和天文资料、新闻稿、教育资源和与辐射监测有关的资料等。
Due to the large exciton binding energy of 60mev , which ensures the high efficient excitonic emission at room temperature , it is regarded as one of the most promising materials for fabricating efficient ultraviolet ( uv ) and blue light emitting devices 由于氧化锌具有较高的激子束缚能( 60mev ) ，保证了其在室温下较强的激子发光，因而被认为是制作紫外半导体激光器的合适材料。
( 3 ) have been developed new - type spme coating by the commonly used ultraviolet ( uv ) curing coating , has offered a kind of simple and convenient and fast method to be suitable for laboratory to make spme coating by oneself 即以100用量的助剂tf ， ab及纳米mnip0220为添加剂， 100浙江工业大学硕士学位论文uv固化固相微萃取新型涂层的开发和应用用量的聚氨酷丙烯酸醋(基准)为主成分配制而成。
The research and development of ultraviolet ( uv ) photodiode and liquid crystal light valve ( lclv ) were reviewed in this thesis . detailed descriptions were given of the structure and operation , material characteristics , preparation processing and applications of the two devices 全面介绍和回顾了当前紫外光电二极管和液晶光阀器件的研究与发展情况，对它们的工作原理，材料特性、制备工艺和应用背景作了详细的分析讨论。
X - rays from chandra ( colored purple ) , optical and ultraviolet ( uv ) data from hubble ( red and orange ) , and radio emission from the very large array ( vla ) and merlin ( blue ) show how the jet from the main galaxy on the lower left is striking its companion galaxy to the upper right 钱德拉（紫色部分）的x射线，哈勃(红色和橙色部分）的光学和紫外线，以及vla和merlin射电图像显示在图左下方的主星系发出的喷流正击中乐在右上方的伴星系。
The zno particles are excited by ultraviolet ( uv ) exciting light ( 365 nm ) , showing two photoluminescence ( pl ) peaks / bands , centered at 2 . 90 ev ( blue ) and 2 . 23 ~ 2 . 41 ev ( yellow - green ) , respectively . the intensity of the yellow - green band was reduced after the product had been annealed in n2 and o2 at 350 c for 1h . ultraviolet visible absorption spectrum shows that the zno absorbs ultraviolet light intensely 对于复合h ps zno结构的发光机制，认为是纳米h价带中的电子在紫外光的激发下，跃迁到zno的导带，从而处于激发态，由于多孔硅的导带比氧化锌的导带低， zno导带中处于激发态的电子很快跃窜到多孔硅的导带，然后再与h价带中的空穴发生复合，发出可见光。
Kapton is used extensively on spacecraft primarily as flexible substrates for lightweight , high - power solar arrays because of its inherent strength , temperature stability , excellent insulation properties , ultraviolet ( uv ) stability and infrared ( ir ) transparency . however , polymeric material undergoes severe degration after being exposured on atomic oxygen ( ao ) in low earth oribit ( leo ) 聚合物kapton由于具有较高的比强度,优越的热稳定性、绝缘性、紫外线辐射稳定性及红外线穿透功能,是航天飞行器常用的材料,但由于空间环境中的原子氧对这种材料造成极大的损害,大大限制了这种材料在空间环境下服役时间。
