Achieving higher spatial resolution in complex amplitude modulation using a pixel shift-based dual-phase modulation method

IF 1.1 4区 物理与天体物理 Q4 OPTICS
Jianglian Wang, Atsushi Okamoto, Yuta Goto, Akihisa Tomita
{"title":"Achieving higher spatial resolution in complex amplitude modulation using a pixel shift-based dual-phase modulation method","authors":"Jianglian Wang, Atsushi Okamoto, Yuta Goto, Akihisa Tomita","doi":"10.1007/s10043-025-00949-0","DOIUrl":null,"url":null,"abstract":"<p>This paper proposes a novel pixel shift-based dual-phase modulation method (PS-DPMM) designed to enhance the spatial resolution of complex amplitude modulations. Conventional techniques, including off-axis computer-generated holograms (CGH), double-phase holograms (DPH), and kinoforms, often encounter issues like low diffraction efficiency, limited spatial resolution, and high speckle noise. Although the dual-phase modulation method (DPMM), which employs two spatial light modulators (SLMs), achieves high diffraction efficiency, its spatial resolution is constrained by the intrinsic pixel size and resolution of the SLM. To overcome this limitation, we propose the PS-DPMM, an extension of the DPMM that introduces a 1/2-pixel shift between two SLMs. Although this sacrifices a portion of the modulation performance, it effectively improves the spatial resolution of complex amplitude modulation by nearly doubling. Through numerical simulations and experimental validation, we demonstrate that the PS-DPMM attains almost twice the spatial resolution of conventional methods while maintaining a relatively high-quality modulation. This approach provides a promising solution for advancing high-spatial-resolution SLM-based complex amplitude modulation with potential applications in holographic displays, fiber-optic systems, and other fields requiring high spatial resolution wavefront control.</p>","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"25 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Review","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s10043-025-00949-0","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0

Abstract

This paper proposes a novel pixel shift-based dual-phase modulation method (PS-DPMM) designed to enhance the spatial resolution of complex amplitude modulations. Conventional techniques, including off-axis computer-generated holograms (CGH), double-phase holograms (DPH), and kinoforms, often encounter issues like low diffraction efficiency, limited spatial resolution, and high speckle noise. Although the dual-phase modulation method (DPMM), which employs two spatial light modulators (SLMs), achieves high diffraction efficiency, its spatial resolution is constrained by the intrinsic pixel size and resolution of the SLM. To overcome this limitation, we propose the PS-DPMM, an extension of the DPMM that introduces a 1/2-pixel shift between two SLMs. Although this sacrifices a portion of the modulation performance, it effectively improves the spatial resolution of complex amplitude modulation by nearly doubling. Through numerical simulations and experimental validation, we demonstrate that the PS-DPMM attains almost twice the spatial resolution of conventional methods while maintaining a relatively high-quality modulation. This approach provides a promising solution for advancing high-spatial-resolution SLM-based complex amplitude modulation with potential applications in holographic displays, fiber-optic systems, and other fields requiring high spatial resolution wavefront control.

利用基于像素偏移的双相位调制方法实现复杂调幅中更高的空间分辨率
本文提出了一种新的基于像素位移的双相位调制方法(PS-DPMM),旨在提高复杂振幅调制的空间分辨率。传统技术,包括离轴计算机生成全息图(CGH)、双相全息图(DPH)和kinoforms,经常遇到衍射效率低、空间分辨率有限和高散斑噪声等问题。采用两个空间光调制器(SLM)的双相位调制方法(DPMM)虽然具有较高的衍射效率,但其空间分辨率受到SLM本身像素大小和分辨率的限制。为了克服这一限制,我们提出了PS-DPMM,它是DPMM的扩展,在两个slm之间引入了1/2像素的位移。虽然这牺牲了部分调制性能,但它有效地提高了复调幅的空间分辨率,提高了近一倍。通过数值模拟和实验验证,我们证明PS-DPMM在保持相对高质量调制的同时,获得了几乎两倍于传统方法的空间分辨率。该方法为推进基于slm的高空间分辨率复杂调幅提供了一个有前途的解决方案,在全息显示、光纤系统和其他需要高空间分辨率波前控制的领域具有潜在的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Optical Review
Optical Review 物理-光学
CiteScore
2.30
自引率
0.00%
发文量
62
审稿时长
2 months
期刊介绍: Optical Review is an international journal published by the Optical Society of Japan. The scope of the journal is: General and physical optics; Quantum optics and spectroscopy; Information optics; Photonics and optoelectronics; Biomedical photonics and biological optics; Lasers; Nonlinear optics; Optical systems and technologies; Optical materials and manufacturing technologies; Vision; Infrared and short wavelength optics; Cross-disciplinary areas such as environmental, energy, food, agriculture and space technologies; Other optical methods and applications.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信