Cited by Reconfigurable metasurface design with hallucination and stealth capabilities

Design of a Polarization-Insensitive and Wide-Angle Triple-Band Metamaterial Absorber DOI

Shaoxin Zheng,

Manna Gu,

Guilan Feng

et al.

Photonics, Journal Year: 2025, Volume and Issue: 12(4), P. 386 - 386

Published: April 16, 2025

This paper proposes a tri-band wide-angle polarization-insensitive absorber operating in the C-band and Ku-band, based on design concept of metal–dielectric–metal. The achieves absorption efficiencies 99.05%, 99.3%, 97.9% at 4.23 GHz, 7.403 14.813 respectively. first two frequencies are C-band, while third frequency is both which commonly used satellite communication. designed consists three differently sized regular hexagonal rings. To analyze interaction mechanism between electromagnetic wave absorber, we applied theory impedance matching equivalent media to metamaterial properties absorber. In addition, circuit model has been analyzed. We then determined existence coupled resonances top bottom surfaces by analyzing distribution electric field, magnetic surface currents By varying polarization angle incident incoming wave, found that exhibits insensitivity characteristics. TE TM waves maintain more than 90% efficiency up angles 50° 60°, absorber’s thickness 1.07 mm, 0.0154 times wavelength corresponding lowest resonant (λ0), edge length subunit’s hexagon 7.5 mm (0.108λ0), making sub-wavelength scale maintaining its compactness. proposed operates can be field communications, achieving functions such as shielding stealth.

Language: Английский

Citations

Large-angle directional scattering of terahertz beams based on all-dielectric metasurface DOI

Fuhai Liu, Yanling Li, Yong Tao

et al.

The European Physical Journal D, Journal Year: 2025, Volume and Issue: 79(5)

Published: May 1, 2025

Language: Английский

Citations

Convolutional neural network for coded metasurface inverse design DOI

Yong Tao, Xudong Qiu, Fuhai Liu

et al.

Applied Physics B, Journal Year: 2025, Volume and Issue: 131(6)

Published: May 10, 2025

Language: Английский

Citations

Real-time Holographic Imaging Programmable Metasurfaces Based on Hardware Accelerator Computation DOI

Haoliang Cheng,

Yunyun Yang,

Manna Gu

et al.

Precision Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Citations

Strong Coupling Based on Quasibound States in the Continuum of Nanograting Metasurfaces in Near-Infrared Region DOI

Y. M. Zhao, Junqiang Li, Yueheng Liu

et al.

Photonics, Journal Year: 2025, Volume and Issue: 12(5), P. 508 - 508

Published: May 19, 2025

Quasibound states in the continuum (qBICs) have aroused much attention as a feasible stage to investigate optical strong coupling due their extremely high-quality factors (Q-factors) and extraordinary electromagnetic field enhancement. However, current demonstrations of based on qBICs primarily focused visible spectral range, while research near-infrared (NIR) regime remains scarce. In this work, we design nanograting metasurface supporting Friedrich–Wintgen bound (FW BICs). We demonstrate that FW BIC formation stems from destructive interference between Fabry–Pérot cavity modes metal–dielectric hybrid guided-mode resonances. To qBIC–exciton system, simulated interaction MoTe2 excitons metasurfaces. A Rabi splitting 55.4 meV was observed, which satisfies criterion. Furthermore, chiral medium layer is modeled inside by rewriting weak expression boundary conditions. mode qBIC–chiral system circular dichroism (CD) spectrum demonstrates response successfully transferred exciton–polaritons systems through coupling. comparison existing studies, our work significantly larger CD signal under same Pascal parameters with thinner dielectric layer. Our provides new ideal platform for investigating quasibound continuum, exhibits promising applications biomedical detection.

Language: Английский

Citations

Compact and High-Efficiency Liquid-Crystal-on-Silicon for Augmented Reality Displays DOI

Zhenyi Luo,

Yuqiang Ding,

Fenglin Peng

et al.

Photonics, Journal Year: 2024, Volume and Issue: 11(7), P. 669 - 669

Published: July 17, 2024

Compact and high efficiency microdisplays are essential for lightweight augmented reality (AR) glasses to ensure longtime wearing comfort. Liquid-crystal-on-silicon (LCoS) is a promising candidate because of its high-resolution density, brightness, low cost. However, bulky illumination system with polarizing beam splitter (PBS) cube remains an urgent issue be overcome. To reduce the volume LCoS system, here, we propose compact structure four thin PBS cuboids. Through simulations, optical 36.7% unpolarized input light can achieved while maintaining reasonably good spatial uniformity. Such novel design expected have significant impact on future AR glasses.

Language: Английский

Citations

Bifocal lenses with adjustable intensities enabled by bilayer liquid crystal structures DOI

Yingjie Zhou,

Xianglin Ye,

Zhu Li

et al.

Optics Letters, Journal Year: 2024, Volume and Issue: 49(19), P. 5495 - 5495

Published: Aug. 13, 2024

In this paper, we propose bifocal lenses based on bilayer structures composed of a liquid crystal (LC) cell and LC polymer, the relative intensity two foci can be adjusted arbitrarily through applying an external voltage. Two layers have different light modulation functions: when circularly polarized passes first layer, part outgoing is converted with PB phase another not converted; followed by second these parts would simultaneously realized but opposite signs; thus transmitted left- right-handed (LCP RCP) independently controlled. As proof-of-concept examples, longitudinal transverse are designed to split incident LCP into convergent beams orthogonal helicity, position flexibly arranged. Benefitting from electrically controlled polarization conversion efficiency (PCE) cell, arbitrarily. Experimental results agree well theoretical calculations. Besides, broadband edge imaging system proposed also been demonstrated. This paper presents simple method design functional multilayer device may potentials in optical interconnection, biological imaging, computing.

Language: Английский

Citations

Three-layer polarisation volume grating with enhanced diffraction efficiency and FOV in AR and VR applications DOI

Ali Zia, Huan Wu, Sadaf Saeed

et al.

Liquid Crystals, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 10

Published: Nov. 4, 2024

In the rapidly evolving fields of Augmented Reality (AR) and Virtual (VR), achieving high diffraction efficiency a wide field view (FOV) is critical for enhancing visual experience. This paper presents three-layer Polarisation Volume Grating (TL-PVG) structure designed to address limitations single-layer PVGs in AR/VR applications. By stacking multiple PVG layers with different tilt angles, TL-PVG achieves an expanded angular bandwidth improved efficiency, enabling brighter more immersive displays. The proposed incorporates polarisation multiplexing optimise optical by approximately 75%, thereby image brightness sharpness. experimental results demonstrate that significantly outperforms traditional PVGs, offering promising solution waveguide elements next-generation study provides comprehensive analysis fabrication process, properties, applications TL-PVGs, highlighting their potential revolutionise technology.

Language: Английский

Citations

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

Reconfigurable metasurface design with hallucination and stealth capabilities DOI

Yanling Li, Fuhai Liu,

Mingfeng Zheng

et al.

The European Physical Journal D, Journal Year: 2024, Volume and Issue: 78(12)

Published: Dec. 1, 2024

Language: Английский

Citations