All-dielectric structural coloration empowered by bound states in the continuum DOI Creative Commons
Hongxing Zheng, Haiyang Hu, Thomas Weber

и другие.

Nanophotonics, Год журнала: 2024, Номер 13(23), С. 4327 - 4335

Опубликована: Окт. 4, 2024

The technological requirements of low-power and high-fidelity color displays have been instrumental in driving research into advanced coloration technologies. At the forefront these developments is implementation dye-free approaches, which overcome previous constraints related to resolution fading. Resonant dielectric nanostructures emerged as a promising paradigm, showing great potential for high efficiency, saturation, wide gamut palette, image reproduction. However, they still face limitations accuracy, purity, simultaneous brightness tunability. Here, we demonstrate an all-dielectric metasurface empowered by photonic bound states continuum (BICs), supports sharp resonances throughout visible spectral range, ideally suited producing range structural colors. design consists TiO

Язык: Английский

Continuous spectral and coupling-strength encoding with dual-gradient metasurfaces DOI Creative Commons
Andreas Aigner, Thomas Weber,

Alwin Wester

и другие.

Nature Nanotechnology, Год журнала: 2024, Номер 19(12), С. 1804 - 1812

Опубликована: Авг. 26, 2024

Abstract To control and enhance light–matter interactions at the nanoscale, two parameters are central: spectral overlap between an optical cavity mode material’s features (for example, excitonic or molecular absorption lines), quality factor of cavity. Controlling both simultaneously would enable investigation systems with complex features, such as multicomponent mixtures heterogeneous solid-state materials. So far, it has been possible only to sample a limited set data points within this two-dimensional parameter space. Here we introduce nanophotonic approach that can continuously encode quality-factor space compact spatial area. We use dual-gradient metasurface design composed array smoothly varying subwavelength nanoresonators, each supporting unique based on symmetry-protected bound states in continuum. This results 27,500 distinct modes density approaching theoretical upper limit for metasurfaces. By applying our platform surface-enhanced spectroscopy, find optimal maximum sensitivity depends amount analyte, enabling effective detection regardless analyte concentration single metasurface. Our provides method analyse complete coupling-strength material applications photocatalysis, chemical sensing entangled photon generation.

Язык: Английский

Процитировано

18

The Road to Commercializing Optical Metasurfaces: Current Challenges and Future Directions DOI
Younghwan Yang, Eunji Lee, Yujin Park

и другие.

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Янв. 15, 2025

Optical metasurfaces, components composed of artificial nanostructures, are recognized for pushing boundaries wavefront manipulation while maintaining a lightweight, compact design that surpasses conventional optics. Such advantages align with the current trends in optical systems, which demand communication devices and immersive holographic projectors, driving significant investment from industry. Although interest commercialization metasurfaces has steadily grown since initial breakthrough diffraction-limited focusing, their practical applications have remained limited by challenges such as, massive-production yield, absence standardized evaluation methods, constrained methodology. Here, this Perspective addresses particularly focused on mass production, fabrication tolerance, performance evaluation, integration into commercial systems. Additionally, we select fields where may soon play roles provide perspective potentials. By addressing exploring solutions, aims to foster discussions will accelerate utilization further build near-future metaphotonics platforms.

Язык: Английский

Процитировано

3

Selective Excitation of Bloch Modes in Canalized Polaritonic Crystals DOI

Yanzhen Yin,

Zhichen Zhao, Junbo Xu

и другие.

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 22, 2025

Abstract Polaritonic crystals (PoCs) have experienced significant advancements through involving hyperbolic polaritons in anisotropic materials such as α‐MoO 3 , offering a promising approach for nanoscale light control and improved light‐matter interactions. Notably, twisted bilayer enables tunable iso‐frequency contours (IFCs), especially generating flat IFCs at certain twist angles, which can enhance mode selectivity their PoCs the highly collimated canalized polaritons. This study unveils selective excitation of Bloch modes with square‐lattice structures on . Through optimization design, there is an effective redistribution into reciprocal lattices PoCs. Fine‐tuning periodicity orientation hole lattice momentum matching between co‐linear points, allowing precise directional over desired Bragg resonances modes. research establishes versatile platform polaritonic devices paves way advanced photonic applications.

Язык: Английский

Процитировано

0

Superchiral Light Emerging from Bound States in the Continuum in Metasurfaces of Si Nanorod Dimers DOI Creative Commons
José Luis Pura, Beatriz Castillo López de Larrinzar, Minpeng Liang

и другие.

ACS Photonics, Год журнала: 2024, Номер unknown

Опубликована: Сен. 3, 2024

Bound states in the continuum (BICs) all-dielectric metasurfaces enhance light-matter interaction at nanoscale due to their infinite

Язык: Английский

Процитировано

3

All-dielectric structural coloration empowered by bound states in the continuum DOI Creative Commons
Hongxing Zheng, Haiyang Hu, Thomas Weber

и другие.

Nanophotonics, Год журнала: 2024, Номер 13(23), С. 4327 - 4335

Опубликована: Окт. 4, 2024

The technological requirements of low-power and high-fidelity color displays have been instrumental in driving research into advanced coloration technologies. At the forefront these developments is implementation dye-free approaches, which overcome previous constraints related to resolution fading. Resonant dielectric nanostructures emerged as a promising paradigm, showing great potential for high efficiency, saturation, wide gamut palette, image reproduction. However, they still face limitations accuracy, purity, simultaneous brightness tunability. Here, we demonstrate an all-dielectric metasurface empowered by photonic bound states continuum (BICs), supports sharp resonances throughout visible spectral range, ideally suited producing range structural colors. design consists TiO

Язык: Английский

Процитировано

2