Roadmap on electromagnetic metamaterials and metasurfaces

Journal of Physics Photonics, Journal Year: 2024, Volume and Issue: 6(3), P. 032502 - 032502

Published: Jan. 3, 2024

properties of the optical surface plasmons in microwave and terahertz frequencies using subwavelength artificial structures to construct negative permittivity.The spoof also benefit from realization ultrathin corrugated metallic strips [14], as they are compatible with printed circuit boards (PCBs) integrated technologies.Since propagating localized were experimentally realized PCBs 2013 2014 [14, 15], this area flourishes prospective applications emerging circuits, sensing, wireless communications [16]. Roadmap Organization AimIn Roadmap, leading experts various significant branches metamaterials metasurfaces present comprehensive overviews these anticipate their trends.The key areas research technology addressed roadmap include: 1. Effective medium metamaterials: In Section 2, Luo Lai firstly introduce effective theories for non-Hermitian 2.1.Wang, Lin, Chen review refraction 2.2; while Wu discuss perfect lens superlens based on 2.3.Then 2.4, Yin, Zhao, investigate advances transformation optics, which provides precise control EM fields an engineered physical space.In 2.5, Wegener introduces challenges recent three-dimensional metamaterials.In 2.6, Li, Zhou, Engheta extreme parameters, especially epsilon-near-zero (ENZ) that have exhibited potential applications.In 2.7, Asadchy, Simovski, Tretyakov chiral bianisotropic 2.8, Yang Zhang photonic topological metamaterials. Metasurfaces -Physics applications:In 3, Sun Zhou light-bending both transmission reflection configurations generalized Snell's law 3.1.In 3.2, Xu impact advanced fabrication technologies high-performance metasurfaces.Then 3.3, complexamplitude metasurfaces, been widely investigated beam forming, Airy Beam generation, meta-holograms.In 3.4, et al. metasurface-assisted polarization a new platform develop devices micrometer-scale footprint unusual functionality.The real application advantages metalens reviewed by Li Zhu 3.5.Zhou describe multi-functional edge imaging 3.6.In 3.7, holographic imaging, offer excellent tool realize 3.8, Xiao discusses active tuning functions after fabrication, highly desirable promising platforms 6G communications, remote radar 3.9, Liu focus introducing metasurface biosensors.In 3.10, geometric phase-controlled nonlinear Tang al., exhibiting great flexibilities controlling phase, polarization, amplitude generated waves.In 3.11, Koshelev Kivshar provide brief summary some observed effects metasurfaces.In 3.12, can act novel demonstrate marvelous effects.In 3.13, Wang, Tsai, overview applied quantum technologies, provided wide variety source state manipulation, information processing, quantumA c e p t d M n u s r i metasurface, i.e., reconfigurable intelligent surfaces massive MIMO transceivers, sensing. Concluding RemarksFrom roadmap, we glad see big progresses achieved ranging optics microwaves.After decades fast developments, not only EM-wave manipulations, but bring out disciplines sciences communication technologies.The future looks bright, there exciting opportunities ahead fundamental engineering applications.

Language: Английский

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Lightwave Electronics: Attosecond Optical Switching

ACS Photonics, Journal Year: 2024, Volume and Issue: 11(2), P. 334 - 338

Published: Feb. 2, 2024

The current revolution in information technology is built on the development of semiconductor transistors and electronics over several decades. However, these reached their advancement saturation limit speed size. Meanwhile, modern communication demands higher-speed faster communications. Hence, scientific community has started to search for a replacement technology. Recently, accelerated ultrafast laser science technology, including generation ultrashort synthesized pulses, opened door optoelectronics. For instance, field subcycle pulses allowed demonstrating all-optical switching with attosecond (10–18 second) speed, promising establish optical petahertz billion times than that typical transistors. Moreover, controlling time interval signals by synthesizing light resolution enables digital binary data encoding pulses. This would allow transferring beams long distances an enhanced 1 petahertz/s. Here, we present recent progress future optics electronics, applications life, remarkable potential impact

Language: Английский

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Electro-optic characterization of synthesized infrared-visible light fields

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: March 2, 2022

Abstract The measurement and control of light field oscillations enable the study ultrafast phenomena on sub-cycle time scales. Electro-optic sampling (EOS) is a powerful characterization approach, in terms both sensitivity dynamic range, but it has not reached beyond infrared frequencies. Here, we show synthesis infrared-visible pulse subsequent complete electric using EOS. sampled bandwidth spans from 700 nm to 2700 (428 110 THz). Tailored electric-field waveforms are generated with two-channel synthesizer full-width at half-maximum duration as short 3.8 fs central wavelength 1.7 µm (176 EOS detection these extends into visible spectral range. To demonstrate power our use transients inject carriers thin quartz sample for nonlinear photoconductive sub-femtosecond resolution.

Language: Английский

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Tracing attosecond electron emission from a nanometric metal tip

Nature, Journal Year: 2023, Volume and Issue: 616(7958), P. 702 - 706

Published: April 26, 2023

Language: Английский

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New Nanophotonics Approaches for Enhancing the Efficiency and Stability of Perovskite Solar Cells

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(17)

Published: Oct. 25, 2023

Abstract Over the past decade, power conversion efficiency (PCE) of perovskite solar cells (PSCs) has experienced a remarkable ascent, soaring from 3.8% in 2009 to record 26.1% 2023. Many recent approaches for improving PSC performance employ nanophotonic technologies, light harvesting and thermal management manipulation charge carrier dynamics. Plasmonic nanoparticles arrayed dielectric nanostructures have been applied tailor absorption, scattering, conversion, as well heat dissipation within PSCs improve their PCE operational stability. In this review, it is begin with concise introduction define realm nanophotonics by focusing on nanoscale interactions between surface plasmons or photonic structures. Prevailing strategies that utilize resonance‐enhanced light–matter boosting stability trapping, transportation, perspectives are then elaborated, resultant practical applications, such semitransparent photovoltaics, colored PSCs, smart windows discussed. Finally, state‐of‐the‐art paradigms reviewed, benefits these aesthetic effects energy‐saving character PSC‐integrated buildings highlighted.

Language: Английский

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All-optical subcycle microscopy on atomic length scales

Nature, Journal Year: 2024, Volume and Issue: 629(8011), P. 329 - 334

Published: May 8, 2024

Language: Английский

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Scanless laser waveform measurement in the near-infrared

APL Photonics, Journal Year: 2025, Volume and Issue: 10(1)

Published: Jan. 1, 2025

Field-resolved measurements of few-cycle laser waveforms allow access to ultrafast electron dynamics in light–matter interactions and are key future lightwave electronics. Recently, sub-cycle gating based on nonlinear excitation active pixel sensors has allowed the first single-shot mid-infrared optical fields. Extending techniques shorter wavelengths, however, is not feasible using silicon-based detectors with bandgaps near-infrared. Here, we demonstrate an all-optical sampling technique for near-infrared fields, wherein intense fundamental field generates a gate through wide-bandgap crystal, this case, ZnO, which can sample electric weak perturbing pulse. By crossed-beam geometry, temporal evolution mapped onto transverse spatial axis medium, waveform captured single measurement spatially resolved fluorescence emission from crystal. The demonstrated field-resolved reshaping during propagation ZnO detection

Language: Английский

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The speed limit of optoelectronics

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: March 25, 2022

Light-field driven charge motion links semiconductor technology to electric fields with attosecond temporal control. Motivated by ultimate-speed electron-based signal processing, strong-field excitation has been identified viable for the ultrafast manipulation of a solid's electronic properties but found evoke perplexing post-excitation dynamics. Here, we report on single-photon-populating conduction band wide-gap dielectric within approximately one femtosecond. We control subsequent Bloch wavepacket field visible light. The resulting current allows sampling optical and tracking signals. Our approach utilizes large fraction conduction-band bandwidth maximize operating speed. identify population transfer adjacent bands associated group velocity inversion as mechanism ultimately limiting how fast currents can be controlled in solids. results imply fundamental limit classical processing suggest feasibility solid-state optoelectronics up 1 PHz frequency.

Language: Английский

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On-chip petahertz electronics for single-shot phase detection

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 23, 2024

Attosecond science has demonstrated that electrons can be controlled on the sub-cycle time scale of an optical waveform, paving way towards frequency electronics. However, these experiments historically relied high-energy laser pulses and detection not suitable for microelectronic integration. For practical electronics, a system integration capable generating detectable signals with low pulse energies is needed. While current from plasmonic nanoantenna emitters driven at frequencies, charge yields have been significant limitation. In this work we demonstrate large-scale electrically connected networks, when in concert, enable sufficient single-shot carrier-envelope phase repetition rates exceeding tens kilohertz. We only show limitations CEP techniques overcome, but also flexible approach to electronics general, enabling future applications such as high sensitivity petahertz-bandwidth electric field sampling or logic-circuits.

Language: Английский

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Attosecond light field synthesis

APL Photonics, Journal Year: 2022, Volume and Issue: 7(4)

Published: April 1, 2022

The advancement of the ultrafast pulse shaping and waveform synthesis allowed to coherently control atomic electronic motions in matter. temporal resolution is inversely proportional broadening its spectrum. Here, we demonstrate light field high-power waveforms spanning two optical octaves, from near-infrared deep-ultraviolet with attosecond resolution. Moreover, utilized all-optical sampling metrology for on-demand tailoring electron motion demonstrated pave way switching photo-induced current signal dielectric nanocircuit establishing photonics operating beyond petahertz speed.

Language: Английский

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