Afterl95os , due to the development of quantum electronics , a new embranchment appeared , which is laser physics , it ? also called the physics of quantum transitions because of the emanation of electronic technology . the symbol of laser physics is the noble physics prize in 1964 . the naissance of laser physics is the landmark in the cognition of naturalness 20世纪中叶以后由于量子电子学的发展而出现了一个新的分支，以研究激光物理机制，探索新型激光器，已形成了专门的学科，即激光物理，或因激光发源于电子技术而称为量子跃迁物理学，它是以1964年的诺贝尔物理学奖为标志的。
This thesis will introduce a new terahertz source which based on vacuum electronics , transmission characteristics of the high frequency system and the process of interaction between electron beam and the high frequency traveling - wave have been researched , which offers basic technology for further deep development of terahertz source technology basd on vacuum electronics in our country 本文将介绍一种基于真空电子学的新型太赫兹辐射源器件,对其线路特性进行研究以及高频系统中注波互作用过程进行数值模拟计算,为国内真空电子学太赫兹源的研究奠定了一定的技术基础。
Porous silicon ( ps ) is a new type silicon - based material developed in recent years , which has different properties compared with the crystalline materials . porous silicon can luminescence efficiently across the whole range from the near infrared , through the visible region , to the near uv region . this characteristic makes it possible to fabricate light - emitting devices and solve the key problem of the optoelectronic integrated circuit ( qeic ) , opening up the bright future for the vlic 多孔硅（ ps ）是近年来发展起来的一种新型硅基材料，具有与单晶硅材料大不相同的特性，例如，多孔硅可在近红外和可见，甚至近紫外区辐射强烈的荧光，使得它可用来制造发光器件，并可望在解决光电子集成电子学的关键问题，为制造带有光源的大规模集成电路等方面开辟新的途径。
Josephson junctions are the key elements of superconducting electronics and the bases of squid and other superconducting components , so it is very important to research the characteristics of josephson junctions . in the thesis some numerical calculations of the equations of josephson junctions in various conditions were done 而约瑟夫森结是超导电子学的关键元件，是超导量子干涉仪( squid )和其它超导器件的基础，所以研究约瑟夫森结的性质对超导的发展及其应用有相当重要的意义。
