A high throughput surface texturing process for optical and optoelectric devices based on a large-area self-assembly of nanospheres via low-cost micropropulsive injection (MPI) method is presented. The novel MPI enables the formation well-organized monolayer hexagonally arranged nanosphere arrays (NAs) with tunable periodicity directly water surface, which then transferred onto preset substrates. This can readily reach 3000 wafers/h, compatible volume photovoltaic manufacturing, thereby...

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....

We consider whether quantum coherence in the form of mutual entanglement between a pair qubits is susceptible to decay that may be more rapid than either qubit individually. An instance potential importance for solid-state computing arises if embedded (spins, dots, Cooper boxes, etc.) are exposed global and local noise at same time. Here we allow separate phase-noisy channels affect nonlocal measures system coherence. find time can significantly shorter dephasing individual qubits.

We examine a class of bipartite mixed states which we call X and report several analytic results related to the occurrence early-stage decoherence or so-called entanglement sudden death (ESD) under time evolution in presence common types environmental noise. Avoidance by application purely local operations is shown be feasible some cases.

Enhancing the light-matter interactions in two-dimensional materials via optical metasurfaces has attracted much attention due to its potential enable breakthrough advanced compact photonic and quantum information devices. Here, we theoretically investigate a strong coupling between excitons monolayer WS$_2$ quasi-bound states continuum (quasi-BIC). In hybrid structure composed of coupled with asymmetric titanium dioxide nanobars, remarkable spectral splitting typical anticrossing behavior...

We investigate the strong coupling between excitons and quasibound states in continuum (BICs) resonance a bulk ${\mathrm{WS}}_{2}$ metasurface. Here, we employ to construct an ultrathin nanodisk metasurface, supporting symmetry-protected magnetic dipole quasi-BIC resonance, which can self-hybridize with lead light-matter interaction enhancement within structure without necessity for external cavity. This be characterized by considerable Rabi splitting of 159 meV clearly anticrossing behavior...

The strong chiral light-matter interaction is crucial for various important fields such as optics, quantum and biomedical driving a quest the extreme intrinsic chirality assisted by ultrahigh quality (Q-) factor resonances.In this quest, we propose straightforward method to achieve in lossless planar structures manipulating quasi-BIC through in-plane perturbation.The temporal coupled-mode theory employed derive conditions necessary achieving maximal chirality.The should be excited within...

Strong coupling exhibits unique ability to preserve quantum sates between light and matter, which is essential for the development of information technology. To explore physical mechanism behind this phenomenon, we employ tight-binding method expanding temporal coupled-mode theory, with absorption spectrum formula coupled system directly obtained in an analytical way. It reveals all meaning parameters defined our shows how tailor lineshapes systems. Here, set example manipulate strong a...

Abstract Minimizing the optical parasitic absorption loss in hydrogenated amorphous silicon (a‐Si:H) and transparent conductive oxide (TCO) layers is considered an effective approach to further improve power conversion efficiencies (PCEs) of crystalline heterojunction (SHJ) solar cells. In this work, carrier‐selective passivating contacts for both polarities, e.g., alkali fluoride/aluminum electron‐selective contact transition metal oxide/silver hole‐selective contact, are used completely...

Abstract Silicon (Si)‐based dopant‐free heterojunction solar cells (SCs) featuring carrier‐selective contacts (CSCs) have attracted considerable interest due to the extreme simplifications in their device structure and manufacturing procedure. However, these SCs are limited by unsatisfactory contact properties on both sides of junction, efficiencies not comparable with those commercially available Si SCs. In this report, a high‐performance silicon‐oxide/magnesium (SiO x /Mg)...

The ultimate goal of artificial intelligence (AI) is to mimic the human brain perform decision-making and control directly from high-dimensional sensory input. Diffractive optical networks (DONs) provide a promising solution for implementing AI with high speed low power-consumption. Most reported DONs focus on tasks that do not involve environmental interaction, such as object recognition image classification. By contrast, capable have been developed. Here, we propose using deep...

We investigate the spontaneous emission of a quantum emitter (QE) placed near twisted hyperbolic metasurfaces (HMTSs) made graphene strips. demonstrate that can be enhanced distinctly due to existence moiré plasmon polaritons (HPPs) supported by HMTSs. Moreover, decay rate efficiently modulated chemical potential graphene, thickness dielectric spacer, and twist angle between two The maximum is achieved when topological transition occurs. will as spacer increases for most cases. In...

Optical metasurfaces have enabled high-speed, low-power image processing within a compact footprint. However, reconfigurable imaging in such flat devices remains critical challenge for fully harnessing their potential practical applications. Here, we propose and demonstrate phase-change capable of dynamically switching between edge-detection bright-field the visible spectrum. This reconfigurability is achieved through engineering angular dispersion at electric magnetic Mie-type resonances....

The metalenses have been extensively studied for their compact and flexible characteristics in focusing imaging applications. However, it remains a significant challenge to design broadband achromatic metalens that maintains high efficiency under arbitrary polarization incidence. In this work, we achieves polarization-insensitive, high-efficiency by effectively utilizing both co-polarization cross-polarization terms of the transmitted light. Using minimalist anisotropic nanofin library,...

Abstract Surface nanotexturing with excellent light‐trapping property is expected to significantly increase the conversion efficiency of solar cells. However, limited by serious surface recombination arising from greatly enlarged area, silicon (Si) nanotexturing‐based cells cannot yet achieve satisfactory high efficiency, which more prominent in organic/Si hybrid (HSCs) where a uniform polymer layer can rarely be conformably coated on nanotextured substrate. Here, HSCs featuring advanced...

Surface-texture with silicon (Si) nanopyramid arrays has been considered as a promising choice for extremely high performance solar cells due to their excellent anti-reflective effects and inherent low parasitic surface areas. However, the current techniques of fabricating Si are always complicated cost-ineffective. Here, throughput nanosphere patterning method is developed form periodic upright (UNP) in wafer-scale. A direct comparison state-of-the-art texture random pyramids demonstrated...

Conventional polarization beam splitters (PBSs) suffer energy loss and signal distortion due to backscattering caused by disturbances. Topological photonic crystals provide immunity anti-disturbance robustness transmission owing the topological edge states. Here, we put forward a kind of dual-polarization air hole-type fishnet valley crystal with common bandgap (CBG). The Dirac points at K point formed different neighboring bands for transverse magnetic electric polarizations are drawn...

The magneto-optical Faraday and Kerr effects are widely used in modern optical devices. In this Letter, we propose an all-dielectric metasurface composed of perforated thin films, which can support the highly confined toroidal dipole resonance provide full overlap between localized electromagnetic field film, consequently enhance to unprecedented degree. numerical results based on finite element method show that rotations reach -13.59° 8.19° vicinity resonance, 21.2 32.8 times stronger than...

Recent progress in nanophotonics is driven by the desire to engineer light-matter interaction two-dimensional (2D) materials using high-quality resonances plasmonic and dielectric structures. Here, we demonstrate a link between radiation control at critical coupling metasurface-based bound states continuum (BIC) physics, develop generalized theory light absorption of 2D resonance metasurfaces. In typical example hybrid graphene-dielectric metasurfaces, present manipulation bandwidth more...