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• Contents: The rapid development of "optical technology" in the wake of the advent of lasers is beginning to revolutionize our lives.
• In the 21 century, we will have a society where people around the world can exchange and freely use various kinds of information.
• Optical technology is expected to play a central role in realizing such an advanced information society.
• What is the essence of light in this book? How does a laser work? How is laser light different from ordinary light? How can I use it? What is optical fiber? What is optical communication? How does an optical disk such as a compact disk work? Why do we need optical technology to handle image information? How do solar cells work? How are you going to use it? What about the future of optical technology? It answers questions about optical technology in a way that the general public can easily understand.