Ultrahigh-density optical information storage is very attractive for high-definition digital television, data distribution, memory, etc. The density is required to become higher and higher with the development of information technology, which requires the information bit size to be smaller than the optical diffraction limit. In this chapter, we introduce the super-resolution optical effects of nanoscale nonlinear thin film structure, and the applications in ultrahigh-density optical information storage.
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The work is partially supported by Shanghai Key Basic Research Project (No. 06DJ14007), National Natural Science Foundation of China (Nos. 50772120, 60507009, and 60490290), and Chinese Academy of Sciences (No. KJCXZ. YW. NANO. 06).
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