Owing to its high-speed, selective, non-linear, contactless, and quantum characteristics, light has the latent power of producing new functionality and paradigm, when combined with novel materials. This presentation reviews the frontier of research concerning a study of interaction between light and ordered spin (magnetization) with ultra-short light pulses and magnetic materials. A personal perspective as to new applications in the field of information processing and transmission is also discussed in view of photonics materials.
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