Published: April 5, 2024
Language: Английский
Optics Communications, Journal Year: 2025, Volume and Issue: unknown, P. 131475 - 131475
Published: Jan. 1, 2025
Language: Английский
Citations
0
Advanced Materials Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 30, 2025
Abstract Surfaces with dynamic topographies play a pivotal role in modern technology by providing adaptable surface properties functional coatings. Here, method for creating high deformation amplitude using plasticized liquid crystal polymeric networks is proposed. Low molecular weight 5CB selected as the plasticizer, which then integrated into polymer (LCNs) and oligomer longer main chains (LCONs). Upon actuation, LCN coating reaches an of 30%, 14% larger than that pure system. While LCON exhibits significant close to 70%, over 37% greater LCONs. The LCONs exhibit more pronounced deformations LCNs due their flexibility. A physical model explaining underlying mechanism further developed. applications these surfaces optical devices, facilitating transitions between specular reflections diffuse reflections, or diffraction are demonstrated.
Language: Английский
Citations
0
Optics Communications, Journal Year: 2025, Volume and Issue: unknown, P. 131596 - 131596
Published: Feb. 1, 2025
Language: Английский
Citations
0
Optics & Laser Technology, Journal Year: 2023, Volume and Issue: 169, P. 110128 - 110128
Published: Sept. 28, 2023
Language: Английский
Citations
8
Optics Letters, Journal Year: 2024, Volume and Issue: 49(21), P. 6325 - 6325
Published: Oct. 15, 2024
Three-dimensional (3D) imaging is widely utilized in various applications, such as light detection, autonomous vehicles, and machine vision. However, conventional 3D systems often rely on bulky optical components. Metasurfaces, next-generation devices, possess flexible wavefront modulation capabilities excellent combination with computer vision algorithms. Here, we propose a large field-of-view (FOV) structured dot array projection device based metasurface, covering 2π-FOV, for projecting coded point clouds Fourier space. We explore local bright spot gray scale matching algorithm depth extraction, enabling imaging. This simplifies the data processing flow optimizes extraction feature processes through customized region comparison. As result, it effectively reduces computational complexity enhances tolerance to image quality fluctuations. The proposed approach provides new possibilities developing compact high-performance planar which will drive advancement of fields artificial intelligence.
Language: Английский
Citations
3
Journal of Applied Physics, Journal Year: 2024, Volume and Issue: 136(8)
Published: Aug. 27, 2024
Stronger light confinement can be enabled by nanoantennas in the nanostructure and result efficient control of directionality scattering. We report on an observation well-pronounced multipolar resonances from nickel originating collective effects. show that coupling modes weak scatterers substantially enhance electric dipole quadrupole resonances. also demonstrate generalized lattice Kerker effect this nanoantenna array. Resonant excitations within arrays significantly phenomena such as magneto-optical effects, indicating promising potential for advanced applications field nanophotonics sensing.
Language: Английский
Citations
2
Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 7, 2024
Abstract The demand for achromatic ultrathin flat lenses has become increasingly stringent, particularly high‐performance imaging and display applications. Despite significant progress in metasurface diffraction lenses, no single material yet been capable of constructing covering ultrabroad wavebands, including the visible near‐infrared (NIR), due to limitations bandgaps. This limitation complicates fabrication processes, integration, miniaturization, often leading instability. In this paper, making use dispersionless nature graphene, high numerical aperture multi‐wavelength metalenses (MAGLs) made entirely from graphene is proposed demonstrated. approach, based on a partial intensity resonance (PIR) mechanism, requires iterative algorithms. Two MAGLs communication bands, respectively, are designed fabricated. Remarkably, measured focal lengths only deviate by less than 0.15% desired values. metalens (GML) produced clear high‐quality images microscopic character Brassica napus cells. demonstrated significantly simplify process enhance stability. Their unique single‐material design offers tremendous potential replace conventional refractive applications such as virtual reality glasses, hyperspectral systems, fluorescence microscopes.
Language: Английский
Citations
2
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 19, 2024
Enhancing energy density and efficiency in laser processing hinges on precise beam focusing, yet this often causes severe heat absorption focus shifts optical lenses. Traditional cooling methods increase cost complexity, severely limiting versatility. Here, monolithic silicon carbide (SiC) metalens is introduced, which shows unparalleled thermal stability, integrated with a high-power laser. This achieves diffraction-limited focusing numerical aperture (NA) of 0.5 focal length 1 cm. Under 1030 nm pulsed at 15 W for h, it minimal temperature rise 3.2 °C tiny shift 14 µm (0.1% relative), only 6% the conventional When used to cut 4H-SiC substrate same laser, exhibit an 11.4% change cutting depth after h operation, correlating results. The results unveil groundbreaking class compact SiC photonics devices nearly impervious absorption, representing monumental leap systems opening new horizons their applications efficiency.
Language: Английский
Citations
2
Multimodal Technologies and Interaction, Journal Year: 2023, Volume and Issue: 7(5), P. 45 - 45
Published: April 27, 2023
Light field displays offer glasses-free 3D visualization, which means that multiple individuals may observe the same content simultaneously from a virtually infinite number of perspectives without need viewing devices. The practical utilization such visualization systems include various passive and active use cases. In case latter, users often engage with utilized system via human–computer interaction. Beyond conventional controls interfaces, it is also possible to advanced solutions as motion tracking, seem seamless highly convenient when paired visualization. However, not necessarily outperform controls, their true potentials fundamentally depend on in they are deployed. this paper, we provide review interaction light displays. Our work takes into consideration different requirements posed by cases, discusses numerous challenges, limitations potentials, proposes research initiatives could progress investigated science.
Language: Английский
Citations
6
Engineering, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 1, 2024
Language: Английский
Citations
1