A5065133661- Spectroscopy and Quantum Chemical Studies
- Advanced biosensing and bioanalysis techniques
- Photonic and Optical Devices
- Neural Networks and Reservoir Computing
- Gold and Silver Nanoparticles Synthesis and Applications
- Optical Network Technologies
- Phase-change materials and chalcogenides
- Biosensors and Analytical Detection
- Advanced Memory and Neural Computing
- Plasmonic and Surface Plasmon Research
- Spectroscopy and Laser Applications
- Cancer-related Molecular Pathways
- Analytical Chemistry and Chromatography
- Transition Metal Oxide Nanomaterials
- Metamaterials and Metasurfaces Applications
- Electrochemical Analysis and Applications
- Catalysis for Biomass Conversion
- Spectroscopy Techniques in Biomedical and Chemical Research
- Perovskite Materials and Applications
- RNA Interference and Gene Delivery
- Protein Interaction Studies and Fluorescence Analysis
- Luminescence and Fluorescent Materials
- Quantum Dots Synthesis And Properties
- CO2 Reduction Techniques and Catalysts
- Catalysis and Hydrodesulfurization Studies
Central South University
2017-2024
East China Normal University
2024
Beijing Normal University
2024
University of Oxford
2022-2024
Guizhou University
2024
Shanghai Jiao Tong University
2021-2024
Xiamen University
2013-2023
Southwest University
2017-2023
Gannan Normal University
2023
Hefei University of Technology
2021-2023
Spectral imaging paves the way for various fields, particularly in biomedical research. However, spectral imaging, mainly depending on spatial or temporal scanning, cannot achieve high temporal, spatial, and resolution simultaneously. In this study, we demonstrated a silicon real-time ultraspectral chip based reconfigurable metasurfaces, comprising 155,216 ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mn>356</mml:mn>...
Abstract Electronically reprogrammable photonic circuits based on phase-change chalcogenides present an avenue to resolve the von-Neumann bottleneck; however, implementation of such hybrid photonic–electronic processing has not achieved computational success. Here, we achieve this milestone by demonstrating in-memory dot-product engine, one that decouples electronic programming materials (PCMs) and computation. Specifically, develop non-volatile electronically PCM memory cells with a...
Abstract New developments in hardware-based ‘accelerators’ range from electronic tensor cores and memristor-based arrays to photonic implementations. The goal of these approaches is handle the exponentially growing computational load machine learning, which currently requires doubling hardware capability approximately every 3.5 months. One solution increasing data dimensionality that processable by such hardware. Although two-dimensional processing multiplexing space wavelength has been...
Abstract Advancements in optical coherence control 1–5 have unlocked many cutting-edge applications, including long-haul communication, light detection and ranging (LiDAR) tomography 6–8 . Prevailing wisdom suggests that using more coherent sources leads to enhanced system performance device functionalities 9–11 Our study introduces a photonic convolutional processing takes advantage of partially boost computing parallelism without substantially sacrificing accuracy, potentially enabling...
Abstract Defects can induce drastic changes of the electronic properties two-dimensional transition metal dichalcogenides and influence their applications. It is still a great challenge to characterize small defects correlate structures with properties. Here, we show that tip-enhanced Raman spectroscopy (TERS) obtain distinctly different features edge in atomically thin MoS 2 , which allows us probe unique identify defect types (e.g., armchair zigzag edges) ambient. We observed an...
Orchestration of diverse synaptic plasticity mechanisms across different timescales produces complex cognitive processes. To achieve comparable complexity in memristive neuromorphic systems, devices that are capable to emulate short- and long-term (STP LTP, respectively) concomitantly essential. However, this fundamental bionic trait has not been reported any existing memristors where STP LTP can only be induced selectively because the inability decoupled using loci mechanisms. In work, we...
Attainment of spatial resolutions far below diffraction limits by means optical methods constitutes a challenging task. Here, we design nonlinear nanorulers that are capable accomplishing approximately 1 nm utilizing the mechanism plasmon-enhanced second-harmonic generation (PESHG). Through introducing Au@SiO2 (core@shell) shell-isolated nanoparticles, strive to maneuver electric-field-related gap modes such reliable relationship between PESHG responses and sizes, represented "PESHG...
Active oxygen species (AOS) play key roles in many important catalytic reactions relevant to clean energy and environment. However, it remains challenging characterize the active sites for producing AOS image surface properties of AOS, especially on multicomponent metallic catalyst surfaces. Herein, we utilize tip-enhanced Raman spectroscopy (TERS) probe local generation diffusion OH radicals a Pd/Au(111) bimetallic surface. The reactive can be catalytically generated from hydrogen peroxide...
Abstract The field of flat optics that uses nanostructured, so‐called metasurfaces, has seen remarkable progress over the last decade. Chalcogenide phase‐change materials (PCMs) offer a promising platform for realizing reconfigurable as their optical properties can be reversibly tuned. Yet, demonstrations metalenses to date have employed material compositions such Ge 2 Sb Te 5 , which show high absorption in visible near‐IR wavelengths particularly crystalline state, limiting applicability....
Abstract Neuromorphic algorithms achieve remarkable performance milestones in tasks where humans have traditionally excelled. The breadth of data generated by these paradigms is, however, unsustainable conventional computing chips. In-memory hardware aims to mimic biological neural networks and has emerged as a viable path overcoming fundamental limitations the von Neumann architecture. By eliminating latency energy losses associated with transferring between memory central processing unit...
Sum-frequency generation (SFG) spectroscopy is a highly versatile tool for surface analysis. Improving the SFG intensity per molecule important observing low concentrations of species and intermediates in dynamic systems. Herein, Shell-Isolated-Nanoparticle-Enhanced (SHINE-SFG) was used to probe model substrate. The substrate, p-mercaptobenzonitrile adsorbed on Au film with SHINs deposited top, provided an enhancement factor up 10^{5}. Through wavelength- polarization-dependent SHINE-SFG...
As an important pathway for energy storage and a key reaction in the carbon cycle, CO2 electrochemical reduction has recently gained significant interest. A variety of catalysts have been used to approach this topic experimentally theoretically; however, molecular level insight into mechanism is lacking due complexity surface processes challenges probing intermediate species. In study, reactions on polycrystalline Cu Au electrodes were investigated 0.1 M CO2-saturated NaHCO3 solution. situ...
Integrated photonic circuits (PICs) have seen an explosion in interest, through to commercialization the past decade. Most PICs rely on sharp resonances modulate, steer, and multiplex signals. However, spectral characteristics of high-quality are highly sensitive small variations fabrication material constants, which limits their applicability. Active tuning mechanisms commonly employed account for such deviations, consuming energy occupying valuable chip real estate. Readily employable,...
In this paper, magnetic substrate, molecular imprinting technology (MIT) and surface-enhanced Raman scattering (SERS) were combined to prepare core-shell molecularly imprinted polymer Fe3O4@SiO2@Ag-MIPs for quantitative detection of ofloxacin. The results showed that the concentration ofloxacin within range 10−3–10−8 mol/L a good linear relationship with peak intensity at 1416 cm−1. prepared had excellent uniformity dispersibility. testing commercially available eye drops recovery, indicated...
A palladium complex coordinated with a chiral SIPHOS ligand was evaluated as an efficient catalyst for asymmetric hydrosilylation of β-silyl styrenes trichlorosilane and 23 1,2-bis(silyl) compounds were produced. Good to excellent enantioselectivities observed 1-aryl-2-silyl ethanols, where the trichlorosilyl groups products selectively converted into hydroxyl group in presence pre-installed trialkylsilyl groups. Asymmetric followed by methylation gave stable 4 yields. DFT calculations...