Complex, amplitude and phase-only holograms using bipolar approximation

被引：0
|
作者：
Fujima, Yudai [1 ]
Velez-Zea, Alejandro [2 ]
Nishitsuji, Takashi [3 ]
Wang, Fan [1 ]
Ito, Tomoyoshi [1 ]
Shimobaba, Tomoyoshi [1 ]
机构：
[1] Chiba Univ, 1-33 Yayoi Cho, Chiba, Chiba 2638522, Japan
[2] Univ Antioquia UdeA, Fac Ciencias Exactas & Nat, Grp Opt & Foton, Inst Fis, Calle 70 52-21, Medellin, Colombia
[3] Toho Univ, Fac Sci, 2-2-1 Miyama, Funabashi, Chiba 2748510, Japan
来源：
OPTICS COMMUNICATIONS | 2025年 / 577卷
关键词：
Hologram; Computer-generated hologram; Approximation; COMPUTER-GENERATED HOLOGRAM; ANGULAR-SPECTRUM;
D O I：
10.1016/j.optcom.2024.131371
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Computer-generated holograms (CGHs) usually require the computation of a large number of trigonometric functions. However, because the computation of trigonometric functions requires a relatively long time, lookup tables (LUTs) are often used in software and hardware implementations for CGH calculations. In particular, the use of LUTs leads to increased memory requirements, and difficulting hardware-based CGH computations. This study reveals the image quality of complex, amplitude and phase-only CGHs using a bipolar approximation method that approximates trigonometric functions using only +1 and-1 values. This method does not require the use of LUTs. Simulation and optical reconstructions showed sufficient image quality.
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页数：7
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