Materials Today Nano, Год журнала: 2024, Номер unknown, С. 100559 - 100559
Опубликована: Дек. 1, 2024
Язык: Английский
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 5, 2025
Abstract As a popular artificial composite material emerging in recent years, metasurfaces are one of the most likely devices to break through volume limitation conventional optical components due their compact structure, flexible materials, and high modulation resolution beam. With unique arrangement units or made special metasurface can effectively modulate incident light's amplitude, phase, polarization, frequency, thus realizing applications such as communication, imaging, sensing, beam steering. The interaction high‐resolution periodic arrangement, constituent materials makes it possible realize these applications, so researchers should choose appropriate micro‐nano processing technologies when designing preparing metasurface. This review will present related preparation metasurfaces, electron lithography (EBL), femtosecond laser processing, focused ion (FIB), additive manufacturing, nanoimprinting, self‐assembly, respectively. In addition, classical techniques wet lithography, plasma deep reactive etching (DRIE), photolithography be introduced. Their development history functions described detail, examples micro‐nano‐structures different branches presented, well some using techniques. this paper has produced several tables describing technologies, outlining resolution, advantages disadvantages, on. Hopefully, provide with options ideas for metasurfaces.
Язык: Английский
Процитировано
2
Photonics, Год журнала: 2025, Номер 12(2), С. 148 - 148
Опубликована: Фев. 12, 2025
We propose a highly efficient broadband tunable metamaterial infrared absorption device. The design is modeled using the three-dimensional finite element method for results show that device captures over 90% of light in wavelength range from 6.10 μm to 17.42 μm. utilize VO2’s phase change property adjust device, allowing average level vary between 20.61% and 94.88%. In this study, we analyze electromagnetic field distribution at its peak point find high achieved through both surface plasmon resonance Fabry–Perot cavity resonance. structural parameters are fine-tuned parameter scanning. By comparing our work with previous studies, demonstrate superior performance design. Additionally, investigate polarization angle incident it insensitive these factors. Importantly, simple structure broadens potential uses photodetection, stealth, sensing.
Язык: Английский
Процитировано
1
Computer Animation and Virtual Worlds, Год журнала: 2025, Номер 36(1)
Опубликована: Янв. 1, 2025
ABSTRACT Neural radiance fields (NeRF) technology has garnered significant attention due to its exceptional performance in generating high‐quality novel view images. In this study, we propose an innovative method that leverages the similarity between views enhance quality of image generation. Initially, a pre‐trained NeRF model generates initial image, which is subsequently compared and subjected feature transfer with most similar reference from training dataset. Following this, selected We designed texture module employs strategy progressing coarse‐to‐fine, effectively integrating salient features into thus producing more realistic By using views, approach not only improves perspective images but also incorporates dataset as dynamic information pool integration process. This allows for continuous acquisition utilization useful data throughout synthesis Extensive experimental validation shows provide scene significantly outperforms existing neural rendering techniques enhancing realism accuracy
Язык: Английский
Процитировано
0
Precision Engineering, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Laser & Photonics Review, Год журнала: 2025, Номер unknown
Опубликована: Янв. 25, 2025
Abstract The thermal phase transition characteristics of vanadium dioxide can effectively regulate the absorption performance metamaterial absorbers. A petal‐shaped absorber is designed based on control and prepared samples using surface projection micro stereolithography (PµSL) 3D printing technology. Then, thin films are coated ultrasonic spraying method. PµSL technology makes it possible to prepare high‐precision complex samples, method enables coating at room temperature. To demonstrate stability this method, two different structures prepared: planar structure hemispherical structure. In experiment, a non‐contact heating used temperature film, which made sample controllable, stable, uniformly heated. experimental results show that has excellent modulation switching characteristics, proves reliability
Язык: Английский
Процитировано
0
Photonics and Nanostructures - Fundamentals and Applications, Год журнала: 2025, Номер unknown, С. 101361 - 101361
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Journal of Applied Physics, Год журнала: 2025, Номер 137(5)
Опубликована: Фев. 3, 2025
The metalens discussed in this article is a planar optical device built on metasurfaces, utilizing precisely engineered subwavelength nanostructured wires to manipulate electromagnetic waves. This enables precise control over the phase, amplitude, and polarization of these Recent advancements research primarily focus their design principles, performance optimization, imaging enhancement, manufacturing techniques, various application domains. reviews progress development, highlighting principles across different frequency bands applications science technology. Future directions are expected emphasize material innovation, simplification processes, further improvements drive adoption cutting-edge fields.
Язык: Английский
Процитировано
0
Coatings, Год журнала: 2025, Номер 15(2), С. 243 - 243
Опубликована: Фев. 19, 2025
As a widely used clean energy source, solar has demonstrated significant promise across various applications due to its wide spectral range and efficient absorption performance. This study introduces cross-structured, ultra-broadband absorber utilizing titanium (Ti) dioxide (TiO2) as foundational materials. The exhibits over 90% within the 280–4000 nm wavelength surpasses 95% in broader spectrum from 542 3833 through cavity coupling effect of incident light excitation subsequent initiation surface plasmon resonance mechanism, thus successfully achieving goal broadband high absorption. Through finite difference time domain method (FDTD) simulation, average efficiency reaches 97.38% 280 4000 nm, it is 97.75% nm. At air mass 1.5 (AM 1.5), 97.46%, loss 2.54%, which extremely efficiency. In addition, thanks material considerations, adopts variety high-temperature resistant materials, making thermal radiation environment still good; specifically, at temperature 900 K, can reach 97.27%, extreme 1800 K temperature, maintain 97.52% radiation, further highlighting excellent stability comprehensive structure optical properties, give broad applicability an ideal or emitter. More importantly, insensitive polarization state effectively handle lines wide-angle range. photothermal conversion (Hereafter referred pc efficiency) sustain elevated level under conditions, enables flexibly adapt diverse environmental especially suitable for integration application photovoltaic systems, broaden potential field renewable energy.
Язык: Английский
Процитировано
0
Physics of Wave Phenomena, Год журнала: 2025, Номер 33(1), С. 46 - 56
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
JETP Letters, Год журнала: 2025, Номер unknown
Опубликована: Март 24, 2025
A transmission-type all-dielectric coded supergrating operating in the terahertz band is designed. The structure uses Si as dielectric material to realize change of transmission phase 2π 0.06 ~ 0.15 THz. Compared with conventional gratings, supergratings have advantages wide bandwidth, high transmittance, easy coupling fiber, and low cost. It represents a new direction optical coding technology has application prospect research value. We design 1-bit supergrating. By changing width grating element structure, two basic structures coefficients continuous changes 180° are obtained. Based on addition theorem digital coding, far-field scattering angle controlled by encoding unit grating, its arrangement order physical superposition. generalized Snell principle, designed calculated theoretically, characteristics simulation results analyzed.
Язык: Английский
Процитировано
0