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Effects of Confocal Filter for Reading of Micro Holographic Data Storage  

Min, Cheol-Ki (연세대학교 기계공학과)
Kim, Do-Hyung (연세대학교 정보저장기기연구센터(CISD))
Park, No-Cheol (연세대학교 기계공학과)
Yang, Hyun-Seok (연세대학교 기계공학과)
Park, Kyoung-Su (연세대학교 기계공학과)
Park, Young-Pil (연세대학교 기계공학과)
Publication Information
Transactions of the Society of Information Storage Systems / v.6, no.1, 2010 , pp. 25-30 More about this Journal
Abstract
In this paper, we investigate the confocal filter for high quality reading signal of micro holographic data storage system. The confocal filter is used to remove crosstalk effects of adjacent recording-layer by multi-layer multiplexing method. To remove a noise of reading signal, we consider size and geometrical structure of filter. From the obtained results, we present optical characteristics including Fresnel and Fraunhofer diffraction effects. Finally, we propose the optimal confocal filter for good image quality and increased reflection power.
Keywords
Micro Holographic Data Storage System (HDSS); Confocal Filter; Diffraction;
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  • Reference
1 H. J. Coufal, D. Psaltis and G. T. Sincerbox, eds, Springer-Verlag, 2000, "Holographic Data Storage", Springer, Series in Optical Sciences.
2 Eichler H J, Kuemmel P, Orlic S and Wapplet A, 1998, "High-density disk storage by multiplexed microholograms", IEEE J. Selected Topics Quantum Electron Vol.4, No.5, pp.840-849.   DOI   ScienceOn
3 J. W. Goodman, "Introduction to Fourier Optics", McGraw-Hill, San Fransisco, 1996. Chap. 4.
4 Michael J. Nasse and Jorg C. Woehl, "Realistic modeling of the illumination point spread function in confocal scanning optical microscopy", J. Opt. Soc. Am. A., Vol. 27, No. 2, pp.295-302.
5 Zsolt Nagy, Pal Koppa, Enrico Dietz, Sven Frohmann, Susanna Orlic and Emoke Lorincz, 2007, "Modeling of multilayer microholographic data storage", Appl. Optics. ,vol. 46, No. 5, pp. 753-761.   DOI   ScienceOn