Design and Fabrication of a Low-cost Liquid Optical Waveguide for Augmented Reality DOI Creative Commons
Ranjith Rajasekharan Unnithan, Dechuan Sun, Gregory Tanyi

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

Abstract The complexities of fabrication techniques and the demand for high precision have posed significant challenges in mass production augmented reality (AR) waveguide combiners. Leveraging capabilities Polyjet 3D printing techniques, we developed a cost-effective method fabricating liquid geometric combiners AR applications, using silicone oil as medium. During design phase, optimized structure combiner to facilitate easier fabrication. Our proposed simplifies process by removing need complicated steps like dicing, layer bonding, polishing, which are usually involved traditional manufacturing techniques. We conducted optical simulations prototype our patented method, successfully demonstrated integration virtual images with real-world environment, thereby confirming its feasibility potential production.

Language: Английский

Three-dimensional varifocal meta-device for augmented reality display DOI Creative Commons
Yongli Song, Jiaqi Yuan, Qinmiao Chen

et al.

PhotoniX, Journal Year: 2025, Volume and Issue: 6(1)

Published: March 10, 2025

Abstract Augmented reality (AR) displays have gained significant attention for their ability to blend the real and virtual worlds seamlessly. However, they face challenges like vergence-accommodation conflict a limited eyebox. The AR community is actively seeking lightweight, integrative optical elements overcome these limitations. In this study, we demonstrate three-dimensional varifocal meta-device display. composed of three cascaded metasurfaces with Moiré off-center Fresnel lens phase profiles designed dynamically manipulate focus point in space. are fabricated by TiO 2 nanopillars varying diameters, which polarization-insensitive light field manipulation. focal position precisely controlled relative rotation between metasurfaces. achieves an effective length ranging from 3.7 mm 33.2 can adjust lateral within same range. dynamic eyebox size varies 4.2 5.8 mm. This integrated well-suited various imaging applications, including displays, as it simultaneously addresses expands

Language: Английский

Citations

0
Dynamic Wavelength‐Selective Diffraction and Absorption with Direct‐Patterned Hydrogel Metagrating DOI Creative Commons
Chenjie Dai, Xinglong Li, Wen‐Xing Yang

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 17, 2024

Abstract Hydrogel nanophotonic devices exhibit attractive tunable capabilities in structural coloration and optical display. However, current hydrogel‐based strategies are mostly based on a single physical mechanism, it remains challenge to merge multiple mechanisms for active with integrated functionalities. Here, hydrogel metagrating combining Fabry‐Pérot (FP) resonance diffraction effects is proposed achieving absorption dynamic wavelength‐selective beam steering. Through exploiting shrinkage under electron‐beam exposure, nanocavity composed of Ag/Hydrogel/Ag three‐layer films can be directly printed arbitrary patterns, enabling the direct‐pattering technique metagrating. The performs as an FP‐type absorber, its peak rapidly shifts humidity variation due layer scaling. response speed <320 ms, shift range >150 nm. It further demonstrated that exclusively deflects light at wavelength, operating wavelength actively switched by regulating ambient humidity. promote new technologies metasurfaces filtering, gas sensing, imaging.

Language: Английский

Citations

1
See‐Through Conformable Holographic Metasurface Patches for Augmented Reality DOI Creative Commons
Yuhui Gan, Jianling Xiao, Tomasz Plaskocinski

et al.

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 26, 2024

Abstract Current requirements for augmented reality (AR) applications demand the use of dedicated AR glasses, which often need custom prescription lenses or contact to correct common visual impairments, thus limiting AR's broader experiences. Here, an innovative methodology design, fabrication, and comprehensive analysis a flexible, reflective‐type holographic metasurface patch designed is presented. By fabricating conformable on transparent flexible substrate, prototype eyeglasses successfully created, capable transforming everyday eyewear into glasses. The tested under both indoor outdoor conditions, proving its effectiveness in delivering immersive imaging presentations. metasurface's compact size does not interfere with normal vision. This approach increases relevance applicability technology by making experiences accessible wider audience.

Language: Английский

Citations

1
Research progress on dynamic holographic display technology based on metasurfaces DOI
Ping‐Hsun Wu, Manna Gu, Chenxia Li

et al.

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 182, P. 112071 - 112071

Published: Nov. 7, 2024

Language: Английский

Citations

1
Upper limit on the polarization-assisted amplitude modulation capability of cascaded single-cell wave-plate-like metasurfaces DOI Creative Commons
Jiahao Wang, Zile Li, Zhiqiang Guan

et al.

Optics Express, Journal Year: 2024, Volume and Issue: 32(16), P. 28611 - 28611

Published: July 18, 2024

The Jones matrix method offers a robust framework for designing polarization multiplexed metasurfaces (PMMs). Traditional PMMs design involves initially defining functions and working channels, then mapping feature to adjustable parameters of metasurfaces. However, this approach makes it difficult predict how channels affect metasurface features. Here, we employ the generalized Malus law Rodriguez rotation on Poincare Sphere analyze diverse channels' impact PMMs' amplitude modulation capacity. For single-celled waveplate-like PMMs, up three distinct images can be displayed. We demonstrate in both theoretic numerical simulations. Our study establishes multi-channel metasurfaces, applicable information encryption, optical computation, diffraction neural networks, etc.

Language: Английский

Citations

0
Design and Fabrication of a Low-cost Liquid Optical Waveguide for Augmented Reality DOI Creative Commons
Ranjith Rajasekharan Unnithan, Dechuan Sun, Gregory Tanyi

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

Abstract The complexities of fabrication techniques and the demand for high precision have posed significant challenges in mass production augmented reality (AR) waveguide combiners. Leveraging capabilities Polyjet 3D printing techniques, we developed a cost-effective method fabricating liquid geometric combiners AR applications, using silicone oil as medium. During design phase, optimized structure combiner to facilitate easier fabrication. Our proposed simplifies process by removing need complicated steps like dicing, layer bonding, polishing, which are usually involved traditional manufacturing techniques. We conducted optical simulations prototype our patented method, successfully demonstrated integration virtual images with real-world environment, thereby confirming its feasibility potential production.

Language: Английский

Citations

0