【摘 要】
：
随着激光技术的迅速发展,激光武器装备日益增多,人眼、光电探测设备和光学系统等越来越多地暴露在强激光环境中,极易受到激光的攻击,激光防护技术变得越来越重要.介绍了激光防护技术的基本概念,总结了几种激光防护方案的优缺点,阐述了基于非线性光学原理的激光防护技术(光限幅技术)的机理.结合国内外研究进展,重点介绍了石墨烯、过渡金属硫化物和黑磷等典型二维半导体非线性光学材料在激光防护方面的应用及其研究进展.
【机 构】
：
中国科学院上海光学精密机械研究所微纳光电子功能材料实验室,上海201800;中国电子科技集团公司光电研究院光电信息控制和安全技术重点实验室,天津300308
论文部分内容阅读
随着激光技术的迅速发展,激光武器装备日益增多,人眼、光电探测设备和光学系统等越来越多地暴露在强激光环境中,极易受到激光的攻击,激光防护技术变得越来越重要.介绍了激光防护技术的基本概念,总结了几种激光防护方案的优缺点,阐述了基于非线性光学原理的激光防护技术(光限幅技术)的机理.结合国内外研究进展,重点介绍了石墨烯、过渡金属硫化物和黑磷等典型二维半导体非线性光学材料在激光防护方面的应用及其研究进展.
其他文献
The bidirectional error diffusion[BERD]algorithm is free from random phase modulation that introduces speckle noise on the reconstructed images,compared with other computer-generated phase-only hologram[POH]approaches.During the POH generation process,the
Genome size changes significantly among taxonomic levels,and this variation is often related to the patterns shaped by the phylogeny,life histories and ecological factors.However,there are mixed evidences on the main factors affecting molecular evolution
近年来,锥形半导体激光器的发展受到越来越多的关注,这主要是因为它能够提供高功率高光束质量的激光输出,但过高的输出功率会导致光束质量的迅速恶化.利用专业光波导仿真软件Rsoft,对比分析了增益波导结构和折射率波导结构对锥形半导体激光器输出特性的影响,主要研究了不同导波模式下的近/远场分布以及功率-电流-电压特性.结果表明,在相同电压条件下,相较于折射率波导结构,具有增益波导结构的锥形激光器的输出功率虽相对较低,但其出光面上的光场分布更均匀,可以有效降低空间烧孔效应的影响,且其远场分布也较均匀.研究结论为锥形
The synthesis of N-substituted amines is one of the key transformations in synthetic chemistry and chemical industry,because amines are ubiquitous in the syntheses of agrochemicals,pharmaceuticals,flavorings,fragrances,and advanced materials.In order to r
Variation in age structure and body size benefits are identified to understand the evolution of life history.Here,we estimated the age structure and body size of two species of odorous frogs (Odorrana margaretae and Odorrana grahami) by using skeletochron
Lithium niobate(LiNbO3),so-called“Silicon in Photonics,”is a multifunctional crystal with a combination of a number of excellent physical properties.In optics and photonics,the LiNbO3-based devices,such as modulators,wavelength converters,waveguide ampli-
通过重离子实验研究了14-nm FinFET工艺静态随机存取存储器(SRAM)的单粒子翻转(SEU)特性.通过使用Weibull函数拟合SEU截面获得该器件的线性能量转移(LET)阈值:0.1 MeV/(mg/cm2).对多位翻转(MBU)贡献的统计结果表明,当LET等于40.3 MeV/(mg/cm2)时,MBU的占比超过95％.此外,FinFET SRAM的SEU截面呈现出与Fin相关的入射角度的各向异性.该研究对基于FinFET工艺的抗辐射CMOS集成电路(IC)的设计具有一定的指导作用.“,”Th
Reptiles are the most morphologically and physiologically diverse tetrapods,with the squamates having the most diverse habitats.Lizard is an important model system for understanding the role of visual ecology,phylogeny and behavior on the structure of vis
The diet of juvenile,including hatchlings and presumed yearlings of the Saltwater Crocodile,Crocodylus porosus,was studied at the Kuching Wetlands National Park,western Sarawak,East Malaysia(Borneo),using both frequency of occurrence and volumetric compos
日盲紫外探测器以其较高的探测灵敏度和较低的背景噪声广泛应用于导弹制导、空间安全通信、臭氧层空洞监测和火焰检测等军事和民用领域.氧化镓(Ga2O3)是一种典型的超宽禁带半导体材料,其较大的禁带宽度(4.2～5.3 eV)几乎占据太阳光谱的整个日盲波段,被认为是制备日盲紫外探测器的理想材料.主要介绍了 Ga2O3的不同晶体结构和基本特性,并综述了基于多种Ga2O3结构的日盲紫外探测器的研究进展.基于Ga2O3纳米线的器件的最大光响应度R＞103 A/W,外量子效率能达到105％;Ga2O3单晶器件的光响应度高