Transactions of the Society of Information Storage Systems (정보저장시스템학회논문집)

The Society of Information Storage Systems (정보저장시스템학회)
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Effects of Confocal Filter for Reading of Micro Holographic Data Storage

마이크로 홀로그래픽 저장장치의 공초점 필터의 효과

  • 민철기 (연세대학교 기계공학과) ;
  • 김도형 (연세대학교 정보저장기기연구센터(CISD)) ;
  • 박노철 (연세대학교 기계공학과) ;
  • 양현석 (연세대학교 기계공학과) ;
  • 박경수 (연세대학교 기계공학과) ;
  • 박영필 (연세대학교 기계공학과)
  • Received : 2010.02.25
  • Accepted : 2010.03.19
  • Published : 2010.03.25
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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

References

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