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Computer simulation of the removal of the 0-th order diffraction by using fourier transform in digital holography

디지털 홀로그래피에서 퓨리어 변환을 이용한 0차 회절광의 제거와 위상홀로그램의 생성에 대한 전산 모사

  • Kim, Sung-Kyu (Imaging Media Center, Korea Institute of Science and Technology) ;
  • Park, Min-Chul (Photonics Research Center, Korea Institute of Science and Technology) ;
  • Lee, Seok (Photonics Research Center, Korea Institute of Science and Technology) ;
  • Kim, Jae-Soon (Physics, Seoul National University) ;
  • Son, Jung-Young (Electric Information Communication Lab, Hanyang University)
  • 김성규 (한국과학기술연구원 영상미디어센터) ;
  • 박민철 (한국과학기술연구원 광기술센터) ;
  • 이석 (한국과학기술연구원 광기술센터) ;
  • 김재순 (서울대학교 물리학과) ;
  • 손정영 (한양대학교 전기정보통신연구소)
  • Published : 2004.02.01

Abstract

A computer simulation about removal of the 0-th order diffraction is achieved by using numerical reconstruction in digital holography and the Fourier transform method. A light intensity distribution hologram is generated through numerical calculation of the interference pattern. Additionally a phase hologram without the 0-th order diffraction is generated. The removal function for elimination of the 0-the order diffraction is introduced and the numerical reconstructions with several conditions for the removal of the 0-th order diffraction and the production of high quality numerically reconstructed images are tested and compared. The removal function is proven to be more effective at the suppression of the 0-th order diffraction compared with the DC suppression method.

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