The United Nations Educational,Scientific and Cultural Organization(UNESCO)names 2015 the International Year of Light and Light-based Technologies,and will hold a series of commemorative activities.Not only working as a researcher in optics and an administrator on optics,but also serving as the editorin-chief for a journal named after‘light’,I am very pleased with excitement on the progress of optics in the past,when welcoming the new era in the future.On behalf of the editorial board of Light:Science&Applications,and also as a representative from tens of thousands of researchers in optics from China,I express my sincere and warm congratulations to the International Year of Light.
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