Full-color and less-speckled modified Gerchberg–Saxton algorithm computer-generated hologram floating in a dual-parabolic projection system

Chen, Chien‐Yu; Chang, Hsuan-Ting; Chang, Tsung-Jan; Chuang, Chih-Hao

doi:10.3788/col201513.110901

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…Among these methods, the Gerchberg–Saxton (GS) method and the Yang–Gu (YG) method stand out as the most renowned iteration-based optimization strategies [48–50] . Subsequently, various modified iterative frameworks have been proposed to bolster computational performance and adapt to specific applications, such as three-dimensional (3D) reconstruction [51–53] . It is worth noting that the effectiveness of iteration-based optimization methods is intricately linked to factors such as target distributions, initial conditions (such as the choice of initial random phase), and DOE parameters.…”

Section: Fundamental Science and Physics Of Light Field Manipulationmentioning

confidence: 99%

Diffractive optical elements 75 years on: from micro-optics to metasurfaces

Zhang,

He,

Xie

et al. 2023

Photonics Insights

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Diffractive optical elements (DOEs) are intricately designed devices with the purpose of manipulating light fields by precisely modifying their wavefronts. The concept of DOEs has its origins dating back to 1948 when D. Gabor first introduced holography. Subsequently, researchers introduced binary optical elements (BOEs), including computer-generated holograms (CGHs), as a distinct category within the realm of DOEs. This was the first revolution in optical devices. The next major breakthrough in light field manipulation occurred during the early 21st century, marked by the advent of metamaterials and metasurfaces. Metasurfaces are particularly appealing due to their ultra-thin, ultra-compact properties and their capacity to exert precise control over virtually every aspect of light fields, including amplitude, phase, polarization, wavelength/frequency, angular momentum, etc. The advancement of light field manipulation with micro/nano-structures has also enabled various applications in fields such as information acquisition, transmission, storage, processing, and display. In this review, we cover the fundamental science, cuttingedge technologies, and wide-ranging applications associated with micro/nano-scale optical devices for regulating light fields. We also delve into the prevailing challenges in the pursuit of developing viable technology for real-world applications. Furthermore, we offer insights into potential future research trends and directions within the realm of light field manipulation.

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Section: Fundamental Science and Physics Of Light Field Manipulationmentioning

confidence: 99%

Diffractive optical elements 75 years on: from micro-optics to metasurfaces

Zhang,

He,

Xie

et al. 2023

Photonics Insights

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Dual Fresnel mirror system for 360 degree viewable three-dimensional displays

Hsu

Lin

2020

Appl. Opt.

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360-degree viewable three-dimensional (3D) display systems have gained considerable attention for the unique manner in which they display objects. Most of the optical display devices in these systems employ two parabolic mirrors facing each other separated by a distance equal to the focal length of the mirrors. However, the current configuration is limited to unity magnification and provides a small image relative to the volume of the system. This paper presents a novel 3D display system based on two Fresnel mirrors with different focal lengths facing each other. The distance between the mirrors can be adjusted to alter the magnification of the resulting 3D image. Wave-optics analysis of an optical dual-lens system equivalent to the proposed dual-mirror system was used to simulate the image distance, the transverse and longitudinal magnification, and the minimum length of the proposed system. This paper also addresses issues pertaining to the design and manufacture of Fresnel mirrors. An experiment system using Fresnel mirrors with focal lengths of 60 m m and 90 m m clearly demonstrated the efficacy of the proposed scheme in terms of 3D image magnification.

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Miniaturization and image optimization of a full-color holographic display system using a vibrating light guide

Chuang

Chen

et al. 2022

Opt. Express

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In this study, a miniaturized full-color holographic reconstruction system that uses a single spatial light modulator to achieve full-color image reconstruction was developed. The reconstruction system uses a single light guide for light combination and is therefore less voluminous than conventional reconstruction systems. The experimental results demonstrated that the system had a full-color display, corrected light combination, and eliminated zero-order light. The vibrations of the light guide disrupted the temporal coherence of the laser beam, thus ensuring that the speckle in the reconstructed image was almost imperceptible to the human eye.

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Full-color and less-speckled modified Gerchberg–Saxton algorithm computer-generated hologram floating in a dual-parabolic projection system

Cited by 4 publications

References 15 publications

Diffractive optical elements 75 years on: from micro-optics to metasurfaces

Diffractive optical elements 75 years on: from micro-optics to metasurfaces

Dual Fresnel mirror system for 360 degree viewable three-dimensional displays

Miniaturization and image optimization of a full-color holographic display system using a vibrating light guide

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