ABSTRACT
87The advent of the information era in the 21st century promises a prosperous future and improved welfare for all. Among others, optical technology is expected to play a key role, and its importance is increasing rapidly. Conventional optical technology has centered around optical information and communication, with a major focus on the development of optical methods for electronic information processing as well as the fusion of technologies. Examples include the development of interfaces between optical and electronic technology and elements or components for controlling wave planes. There is also an increasing demand for optical technology in a wider range of fields, such as medicine, social welfare, and the environment.
