人类社会正在步入一个高度信息化、自动化的新时代。信息产业与能源、交通并列被列为现代化社会的三要素,成为当前国际间综合国力竞争的重要基础。信息的超大容量传送、超快速度处理及超高密度的记忆存储,已成为衡量社会现代化水平的重要标志。微电子与光电子是信息技术的两大支柱,它对社会生产力发展的推动和文明生活的提高 Human society is entering a new era of high information and automation. Information industry and energy and transportation have been listed as three elements of modern society. They have become the important basis for the current international competition in comprehensive national strength. The superb transport of information, ultra-fast processing and ultra-high density memory storage have become important indicators of the level of social modernization. Microelectronics and optoelectronics are two pillars of information technology. They promote the development of social productivity and the improvement of civilized life