Improvement of the image quality of random phase-free holography using an iterative method

OPTICS COMMUNICATIONS

卷:355

Article

Shimobaba, Tomoyoshi¹  Kakue, Takashi¹  Endo, Yutaka¹  Hirayama, Ryuji¹  Hiyama, Daisuke¹  Hasegawa, Satoki¹  Nagahama, Yuki¹  Sano, Marie¹  Oikawa, Minoru¹  Sugie, Takashige¹  Ito, Tomoyoshi¹ 

[1] Chiba Univ, Grad Sch Engn, Inage Ku, Chiba 2638522, Japan

关键词: Computer-generated hologram;    Electroholography;    Hologram;    Holography;    Holographic projection;    Kinoform;    Phase-only hologram;   

DOI  :  10.1016/j.optcom.2015.07.030

来源: Elsevier

【 摘 要 】

Our proposed method of random phase-free holography using virtual convergence light can obtain large reconstructed images exceeding the size of the hologram, without the assistance of random phase. The reconstructed images have low-speckle noise in the amplitude and phase-only holograms (kinoforms); however, in low-resolution holograms, we obtain a degraded image quality compared to the original image. We propose an iterative random phase-free method with virtual convergence light to address this problem. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free