物理学的两大分支——电子学与光学近几十年来发生了越来越密切的关连。有人用“正在迅速融合”来形容之。一方面是这两个学科随着科学技术的发展而飞跃发展;另一方面,由于它们之间在理论上有着深远的联系,应用上又是相似相通、相辅相成。因而在近二三十年 The two major branches of physics-electronics and optics-have become more and more involved in recent decades. Someone described it as “rapidly converging.” On the one hand, these two disciplines leapfrog with the development of science and technology; on the other hand, due to their far-reaching theoretical connections, they are similar in application and complement each other. Thus in the last two or three decades