A5101882402- Photonic and Optical Devices
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced Fiber Laser Technologies
- Advanced Nanomaterials in Catalysis
- 2D Materials and Applications
- Metal complexes synthesis and properties
- Neural Networks and Reservoir Computing
- Vanadium and Halogenation Chemistry
- Gold and Silver Nanoparticles Synthesis and Applications
- Metal-Catalyzed Oxygenation Mechanisms
- Optical Network Technologies
- Semiconductor Lasers and Optical Devices
- Advanced Fiber Optic Sensors
- Nanowire Synthesis and Applications
- Photonic Crystals and Applications
- Perovskite Materials and Applications
- Plasmonic and Surface Plasmon Research
- Chalcogenide Semiconductor Thin Films
- Nanocluster Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Semiconductor Quantum Structures and Devices
- Graphene research and applications
- Advanced biosensing and bioanalysis techniques
- Advanced Photocatalysis Techniques
Chongqing University
2025
Hunan Institute of Engineering
2025
Westlake University
2021-2024
Guangxi Medical University
2024
Chinese Academy of Sciences
2012-2024
Fuzhou University
2024
Fujian Institute of Research on the Structure of Matter
2024
Zhejiang University
2017-2024
State Key Laboratory of Modern Optical Instruments
2024
Shanghai Institute of Technology
2024
Osteoarthritis (OA) progresses due to the excessive generation of reactive oxygen and nitrogen species (ROS/RNS) abnormal ATP energy metabolism related oxidative phosphorylation pathway in mitochondria. Highly active single-atom nanozymes (SAzymes) can help regulate redox balance have shown their potential treatment inflammatory diseases. In this study, we innovatively utilised ligand-mediated strategies chelate Pt
All the optical properties of materials are derived from dielectric function. In spectral region where permittivity approaches zero, known as epsilon-near-zero (ENZ) region, propagating light within material attains a very high phase velocity, and meanwhile exhibits strong nonlinearity. The interplay between linear nonlinear response in these thus offers unprecedented pathways for all-optical control device design. Here authors demonstrate ultrafast modulation based on typical ENZ indium tin...
Optical neural networks (ONNs), enabling low latency and high parallel data processing without electromagnetic interference, have become a viable player for fast energy-efficient calculation to meet the increasing demand hash rate. Photonic memories employing nonvolatile phase-change materials could achieve zero static power consumption, thermal cross talk, large-scale, high-energy-efficient photonic networks. Nevertheless, switching speed dynamic energy consumption of material-based make...
Monochalcogenides of germanium (or tin) are considered as isoelectronic and isostructural analogues black phosphorus. Here, we demonstrate the synthesis atomically thin GeSe by direct sonication-assisted liquid phase exfoliation (LPE) bulk microcrystalline powders in organic solvents. The thickness sheets is dependent on conditions, highly crystalline few-layer 4–10 layer stacks with lateral sizes over 200 nm were obtained. In ambient atmosphere, LPE deposited substrate strong resistance...
Abstract 2D plasmons are of particular interest in the exploration light–matter interactions materials. In plasmonic materials, response time (in sub‐picosecond scale) free carriers is order magnitude faster than excitonic recombination semiconductors, making them highly attractive for realizing optical switching and modulation nanoscale devices. However, small carrier density gapless materials like graphene has strongly limited strength interaction operative spectral range. Here, it shown...
Due to the excellent electrical and optical properties their integration capability without lattice matching requirements, low-dimensional materials have received increasing attention in silicon photonic circuits. Bi2O2Se with high carrier mobility, narrow bandgap, good air stability is very promising for high-performance near-infrared photodetectors. Here, chemical vapor deposition method applied grow onto mica, our developed polycarbonate/polydimethylsiloxane-assisted transfer enables...
The 2-μm-waveband has been recognized as a potential telecommunication window for next-generation low-loss, low-latency optical communication. Thermo-optic (TO) modulators and switches, which are essential building blocks in large-scale integrated photonic circuit, their performances directly affect the energy consumption reconfiguration time of an on-chip system. Previous TO modulation based on metallic heaters at suffer from slow response high power consumption. In this paper,...
Hybrid integration of van der Waals materials on a photonic platform enables diverse exploration novel active functions and significant improvement in device performance for next-generation integrated circuits, but developing waveguide-integrated photodetectors based conventionally investigated transition metal dichalcogenide at the full optical telecommunication bands mid-infrared range is still challenge. Here, we integrate PdSe2 with silicon waveguide on-chip photodetection high...
Integrated spectrometers provide the possibility of compact, low-cost portable spectroscopy sensing, which is critical component lab-on-a-chip system. However, using existing on-chip designs challenging to realize a high-resolution miniature spectrometer over broad wavelength range. Here, we demonstrate an time-sampling narrowband filter array that enables simultaneous acquisition spectra via optical Fabry–Pérot cavities and large spectral range with tunable free filters. Two consisting five...
Abstract Free-spectral-range (FSR)-free optical filters have always been a critical challenge for photonic integrated circuits. A high-performance FSR-free filter is highly desired communication, spectroscopy, and sensing applications. Despite significant progress in filters, the with tunable narrow-band, high out-of-band rejection, large fabrication tolerance has rarely demonstrated. In this paper, we propose an exact robust design method add-drop (ADFs) operation capability, sub-nanometer...
Abstract On‐chip micro‐spectrometers are sought after with great effort owing to extensive potential applications in mobile optical sensing and imaging. By multiplexing more physical channels, the reconstructive spectrometers based on spectral‐to‐spatial mapping technique can improve spectral range. However, this method is challenging implement sustain due increase system complexity decrease of dynamic range or resolution. Here, a micro‐spectrometer utilizing single tunable microdisk...
Abstract Microspectrometers have numerous applications in mobile optical sensing due to their dramatic advantages of compact size, light weight, and low power consumption. Reconstructive spectrometers, based on computational algorithms, garnered considerable interest as they exhibit superior resolution or spectral bandwidth. However, existing reconstructive spectrometer designs face challenges applicability, algorithm robustness, the resolution‐bandwidth limit. Here, a that utilizes...
Optical neural networks (ONNs) herald a new era in information and communication technologies have implemented various intelligent applications. In an ONN, the activation function (AF) is crucial component determining network performances on-chip AF devices are still development. Here, we first demonstrate reconfigurable with phase fulfilled by dual-functional graphene/silicon (Gra/Si) heterojunctions. With optical modulation detection one device, time delays shorter, energy consumption...
Abstract Monochalcogenides of group IV elements have been considered as phosphorene analogs due to their similar crystal and electronic structure. Here, few‐layer SnSe nanosheets are synthesized by a sonication‐assisted liquid phase exfoliation process linear nonlinear optical properties examined. The as‐exfoliated (FL) demonstrates layer thickness from 2 10 nm lateral size 150 with high crystallinity. Optical measurement confirms the layer‐number dependent bandgap, which is also...
Although mesocrystals with ordered building units have great potential in many fields because of the large amount organic molecules used as structure-directing agents during their synthesis process, severe matrix interference makes surface-enhanced Raman scattering (SERS) properties rarely understood. Herein, a rapid (20 s) and green microwave synthetic route is developed for 100 g scale preparation plasmonic W18O49 no additives. The ultrathin (1.5 nm) oxygen vacancy-rich nanowires unit...
The mid-infrared (MIR, 2–20 μm) waveband is of great interest for integrated photonics in many applications such as on-chip spectroscopic chemical sensing, and optical communication. Thermo-optic switches are essential to large-scale photonic circuits at MIR wavebands. However, current technologies require a thick cladding layer, high driving voltages or may introduce losses wavelengths, limiting the performance. This paper has demonstrated thermo-optic (TO) operating 2 μm by integrating...
Two-dimensional In2Se3, an unconventional phase-change material, has drawn considerable attention for polymorphic phase transitions and electronic device applications. However, its reversible thermally driven potential use in photonic devices have yet to be explored. In this study, we observe the between α β' phases with assistance of local strain from surface wrinkles ripples, as well changes within β family. These lead refractive index other optoelectronic properties minimal optical loss...
Flexible photodetectors have garnered extensive research interest due to their potential applications in optical communications, sensing, and wearable systems. However, operating frequencies been limited less than 10 MHz, which falls significantly below the requirements for certain applications. Here, we present a high-performance flexible photodetector based on InGaAs nanomembrane fabricated plastic foil, where epitaxial layers are bonded with adhesives before being lifted from parent InP...
The detection of mid-infrared light, covering a variety molecular vibrational spectra, is critical for both civil and military purposes. Recent studies have highlighted the potential two-dimensional topological semimetals due to their advantages, including van der Waals (vdW) stacking gapless electronic structures. Among them, photodetectors based on type-II Dirac been less studied. In this paper, we present silicon waveguide integrated semimetal platinum telluride (PtTe2) photodetector,...
Abstract Mid‐infrared (MIR) waveguide‐integrated photodetector is essential for various applications in the fields of sensing and optical communications. However, it challenging to integrate traditional MIR photoactive materials such as HgCdTe or III−V compounds with complementary metal‐oxide‐semiconductor (CMOS)‐compatible silicon platform due lattice mismatch. Tellurium (Te), a novel van der Waals (vdW) material narrow bandgap, high carrier mobility, great air stability, promising...