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声光学是研究光与声相互作用引起的物理效应及其规律与应用的一门新的边缘性学科。早在本世纪30年代初,德拜等人就实验论证了声光互作用。但其真正成为一门科学,则是60年代初激光器问世以后的事。近20多年来,随着激光技术和微电子技术的发展以及高性能超声延迟线的实现,促成了声光技术的迅速发展。今天,声光器件不仅在激光束的偏转与调制方面得到广泛应用,而且在频域和时域的大带宽高密度实时信号处理中显示出其令人瞩目的优点,正逐渐发展成一门新的信号处理技术——声光信号处理技术。 为使读者,特别是信号处理系统设计师对声光技术有较全面的了解,编辑部特邀请南开大学现代光学研究所董孝义教授和四川压电与声光技术研究所高希才高级工程师举办“声光学及其应用”讲座,以期对声光技术的推广应用有所裨益。
Acoustooptical optics is a new fringe discipline that studies the physical effects caused by the interaction of light with sound and its laws and applications. As early as the early 1930s, Depp and others experimentally demonstrated the acousto-optic interaction. But it really became a science, it is 60 years after the laser came out. In the recent 20 years, with the development of laser technology and microelectronic technology and the realization of high performance ultrasonic delay line, the rapid development of acousto-optic technology has been promoted. Today, acoustooptic devices are not only widely used in the deflection and modulation of laser beams, but also show their remarkable advantages in large-bandwidth, high-density real-time signal processing in the frequency and time domains and are gradually being developed into a new Signal Processing - Acousto-optic signal processing. In order to make readers, especially signal processing system designers have a comprehensive understanding of acousto-optic technology, the Editorial Department invited Professor Dong Xiaoyi from Institute of Modern Optics, Nankai University, and Gao Xicai, Senior Engineer of Sichuan Institute of Piezoelectric and Acousto-Optic Technology And its application "lecture, with a view to promote the use of acousto-optic technology benefit.