【摘 要】
：
The past 20 years have witnessed the rapid growth of photonic integration circuits(PIC)technology,which has been warmly embraced by both academia and the indust
【机 构】
：
Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;School of Electrical En
论文部分内容阅读
The past 20 years have witnessed the rapid growth of photonic integration circuits(PIC)technology,which has been warmly embraced by both academia and the industry.Powered by the advanced development in material growth,processing,and design capability,the PIC technology now cov-ers multiple material platforms,including Ⅲ-Ⅴ(InP,GaAs),silic-on,silica,lithium niobate on insulator(LNOI)polymer,etc.The integration level has evolved from a single functional device to thousands of components on-chip.The increase in the performance and the complexity of the PICs have be-come an energetic booster for communication and informa-tion technology.
其他文献
考虑大跨度悬索桥结构的几何非线性因素,建立了风-列车-桥梁耦合系统动力分析模型。为了考虑结构大位移非线性因素的影响,在有限元建模时考虑悬索桥主缆自重垂度及缆索初始内
中职学生英语基础薄弱,学习缺乏主动性和积极性。针对学生现状,了解学生学习状态及心理状态而进行一些有效的教学手段来开发学生学习潜能。
Vocational students have a wea
目的观察沉默膜联蛋白Ⅱ(annexinⅡ,A2)基因对淋巴瘤Jurkat细胞凋亡的影响。方法采用A2 siRNA转染人淋巴瘤Jurkat细胞后应用RT-PCR和Western blot鉴定干扰效果。Annexin V-FI
We review recent work on narrowband orthogonally polarized optical RF single sideband generators as well as dual-channel equalization,both based on high-Q integ
在新课标的理念中,非常注重学生赏文及情感的培养。而古代诗歌博大精深,意韵深刻并且饱含着哲理,学好古诗,将大大有利于陶冶情操,提高人文修养及丰富学生的想象。因而在古诗
《语文课程标准》对阅读要求中有这样的概括:“在通读课文的基础上,理清思路,理解主要内容,品味和推敲重要词句在语言环中的意义和作用.”;“品味作品中富于表现力的语言.”
Lithium niobate on insulator(LNOI)is rising as one of the most promising platforms for integrated photonics due to the high-index-contrast and excellent materia
（一） 袁世凯亦可谓是治世之能臣，乱世之奸雄。传说袁氏“相貌堂堂，有帝王之仪，不怒而威”。据山西“土皇帝”阎锡山晚年回忆道：我一生见过了多少位咱国家的元首，如孙中山、黎元洪、徐世昌、冯国璋、曹锟，甚至张勋、段祺瑞至蒋介石等，没有一个像袁世凯的两道目光那样虎视眈眈的逼人，使人不敢仰视。他被袁世凯召见3次，其中第一次召见给他留下了终生难忘的印象，并为此谈袁色变，心有余悸。 袁世凯在篡夺了中华民国正