Image magnification in lensless holographic projection using double-sampling Fresnel diffraction

Applied Optics
Weidong QuQiaofeng Tan

Abstract

Since the diffraction angle is limited by the spatial resolution of the spatial light modulator (SLM), the size of the optical image of the lensless holographic projection with a SLM is very small. Using a divergent spherical beam to illuminate a SLM is an effective method to physically increase the projection angle; nevertheless, the sampling ranges of the existing Fresnel diffraction algorithms with fast Fourier transform keep unchanged. In this paper, a double-sampling Fresnel diffraction algorithm to enlarge the sampling range is proposed when using a divergent spherical beam to illuminate a SLM, and the magnification of the optical image is realized in lensless holographic projection. The hologram can be easily optimized by the Gerschberg-Saxton algorithm. Simulation and experimental results with enlarged optical image are presented successfully.

References

Aug 18, 2004·Optics Letters·Fucai ZhangL P Yaroslavsky
Aug 27, 2005·Applied Optics·Bala MunjuluriHarold R Garner
Mar 10, 2003·Optics Express·Michael HuebschmanHarold Garner
Apr 23, 2010·Optics Letters·Michal MakowskiAndrzej Kolodziejczyk
Aug 6, 2010·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Yuhei KuratomiTatsuo Uchida
Oct 23, 2010·Optics Letters·Edward Buckley
Oct 24, 2013·Optics Express·Tomoyoshi ShimobabaTomoyoshi Ito
Jan 1, 2012·Nature Photonics·Brandon ReddingHui Cao

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