Integrated metasurfaces for re-envisioning a near-future disruptive optical platform

Light Science & Applications, Год журнала: 2023, Номер 12(1)

Опубликована: Июнь 20, 2023

Abstract Metasurfaces have been continuously garnering attention in both scientific and industrial fields, owing to their unprecedented wavefront manipulation capabilities using arranged subwavelength artificial structures. To date, research has mainly focused on the full control of electromagnetic characteristics, including polarization, phase, amplitude, even frequencies. Consequently, versatile possibilities wave achieved, yielding practical optical components such as metalenses, beam-steerers, metaholograms, sensors. Current is now integrating aforementioned metasurfaces with other standard (e.g., light-emitting diodes, charged-coupled devices, micro-electro-mechanical systems, liquid crystals, heaters, refractive elements, planar waveguides, fibers, etc.) for commercialization miniaturization trends devices. Herein, this review describes classifies metasurface-integrated components, subsequently discusses promising applications platforms those augmented/virtual reality, light detection ranging, In conclusion, presents several challenges prospects that are prevalent field order accelerate metasurfaces-integrated platforms.

Язык: Английский

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Reaching the efficiency limit of arbitrary polarization transformation with non-orthogonal metasurfaces

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Авг. 6, 2024

Polarization transformation is at the foundation of modern applications in photonics and quantum optics. Notwithstanding their applicative interests, basic theoretical experimental efforts are still needed to exploit full potential polarization Here, we reveal that coherent superposition two non-orthogonal eigen-states Jones matrix can improve drastically efficiency arbitrary with respect classical orthogonal By exploiting metasurface stacking twisted configuration, have implemented a powerful termed "non-orthogonal metasurfaces", experimentally demonstrated input-output modulation reaching nearly 100% transmission broadband angle-insensitive manner. Additionally, proposed routing methodology project independent phase holograms quadruplex circular components. Our results outline paradigm achieve extremely efficient optics, multiplexing for communication information encryption microwave optical frequencies. The authors showcase general method engineer unity, taking advantage eigen-formalism circumvent limitation conventional

Язык: Английский

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360° structured light with learned metasurfaces

Nature Photonics, Год журнала: 2024, Номер 18(8), С. 848 - 855

Опубликована: Июнь 11, 2024

Язык: Английский

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Liquid crystal-integrated metasurfaces for an active photonic platform

Opto-Electronic Advances, Год журнала: 2024, Номер 7(6), С. 230216 - 230216

Опубликована: Янв. 1, 2024

Metasurfaces have opened the door to next-generation optical devices due their ability dramatically modulate electromagnetic waves at will using periodically arranged nanostructures. However, metasurfaces typically static responses with fixed geometries of nanostructures, which poses challenges for implementing transition technology by replacing conventional components. To solve this problem, liquid crystals (LCs) been actively employed designing tunable adjustable birefringent in real time. Here, we review recent studies on LC-powered metasurfaces, are categorized as wavefront tuning and spectral tuning. Compared numerous reviews intensively explores development LC-integrated metasurfaces. At end review, briefly introduce latest research trends suggest further directions improving LCs. We hope that accelerate new innovative devices.

Язык: Английский

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A water-soluble label for food products prevents packaging waste and counterfeiting

Nature Food, Год журнала: 2024, Номер 5(4), С. 293 - 300

Опубликована: Апрель 4, 2024

Язык: Английский

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Phase-change nonlocal metasurfaces for dynamic wave-front manipulation

Physical Review Applied, Год журнала: 2024, Номер 21(4)

Опубликована: Апрель 1, 2024

Recent advances in nonlocal metasurfaces have enabled unprecedented success shaping the wave front of light with spectral selectivity, offering alternative solutions for many emerging nanophotonics applications. The ability to tune both and spatial properties such a class is highly desirable, but dynamic nonvolatile control remains elusive. Here, we demonstrate active narrowband wave-front manipulation by harnessing quasi-bound states continuum (quasi-BICs) phase-change metasurfaces. proof-of-principle made ${\mathrm{Sb}}_{2}{\mathrm{S}}_{3}$ allow nonvolatile, reversible, tunable over switchable response at given wavelength near-infrared regime. design principle mainly builds upon combination geometry phase quasi-BICs tunability meta-atoms tailor resonant wavelengths. By tuning crystallization level through controlling external stimuli, wave-front-shaping functionalities beam steering, one-dimensional, two-dimensional focusing, holographic imaging are achieved exclusively wavelengths, functionally transparent off resonance. This work represents critical advance towards developing an integrated metasurface future augmented virtual reality wearables.

Язык: Английский

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Generalized Drude–Lorentz Model Complying with the Singularity Expansion Method

Advanced Optical Materials, Год журнала: 2024, Номер 12(12)

Опубликована: Фев. 24, 2024

Abstract Deriving analytical expressions of dielectric permittivities is required for numerical and physical modeling optical systems the soar non‐Hermitian photonics motivates their prolongation in complex plane. Analytical models are based on association microscopic to describe macroscopic effects. However, question know whether resulting Debye–Drude–Lorentz not too restrictive. Here, it shown that permittivity must be treated as a meromorphic transfer function complies with requirements analysis. This can naturally expanded set singularities. singularity expansion allows derive generalized expression model analysis constraints systems. It singularities other parameters this retrieved from experimental data acquired along real frequency axis. The accuracy assessed wide range materials including metals, 2D dielectrics, how distribution poles helps characterizing materials.

Язык: Английский

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Advanced manufacturing of dielectric meta-devices

Photonics Insights, Год журнала: 2024, Номер 3(2), С. R04 - R04

Опубликована: Янв. 1, 2024

Язык: Английский

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Terahertz Plasmonic Biosensor Leveraging Ag-Au-Graphene Heterostructures for Quantitative Hemoglobin Analysis with Machine Learning Algorithms for Performance Optimization

Plasmonics, Год журнала: 2024, Номер unknown

Опубликована: Сен. 4, 2024

Язык: Английский

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High-dimensional Poincaré beams generated through cascaded metasurfaces for high-security optical encryption

PhotoniX, Год журнала: 2024, Номер 5(1)

Опубликована: Апрель 17, 2024

Abstract Optical encryption plays an increasingly important role in the field of information security owing to its parallel processing capability and low power consumption. Employing ultrathin metasurfaces optical has promoted miniaturization multifunctionality systems. Nevertheless, with few number degrees freedom (DoFs) multiplexed by single metasurface, both key space encoding are limited. To address this issue, we propose a high-security large-capacity scheme based on perfect high-dimensional Poincaré beams expanded DoFs. By cascading two arrayed metasurfaces, more beam properties can be independently engineered, which gives rise extensively spaces. Our work provides promising strategy for high level large capacity might facilitate applications communications quantum information.

Язык: Английский

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