A5017760658- Nuclear physics research studies
- Nonlinear Optical Materials Research
- Nuclear Physics and Applications
- Nuclear reactor physics and engineering
- Photonic and Optical Devices
- High-Energy Particle Collisions Research
- Radiation Detection and Scintillator Technologies
- Astronomical and nuclear sciences
- Photorefractive and Nonlinear Optics
- Semiconductor Lasers and Optical Devices
- Quantum Chromodynamics and Particle Interactions
- Advanced Fiber Laser Technologies
- Porphyrin and Phthalocyanine Chemistry
- Atomic and Molecular Physics
- X-ray Spectroscopy and Fluorescence Analysis
- Particle Detector Development and Performance
- Advanced Photonic Communication Systems
- Nuclear Materials and Properties
- Advanced Optical Imaging Technologies
- Liquid Crystal Research Advancements
- Molecular Junctions and Nanostructures
- Particle physics theoretical and experimental studies
- Acoustic Wave Resonator Technologies
- Magnetic confinement fusion research
- Radiation Therapy and Dosimetry
University of Science and Technology of China
2025
First Affiliated Hospital of Xiamen University
2025
Sichuan University
2018-2024
Sun Yat-sen University
2023
State Key Laboratory of Oral Diseases
2022
Analogic (United States)
2021
Institute of Modern Physics
2013-2018
China Academy of Engineering Physics
2017-2018
Chinese Academy of Sciences
2013-2018
Northwestern University
1991-2016
This paper describes the synthesis and characterization of self-assembled second-order nonlinear optical multilayer materials containing high-hyperpolarizability [(aminophenyl)azo]pyridinium chromophore. The chromophoric multilayers are assembled on clean glass or single-crystal silicon substrates via following iterative reaction sequence: (1) treatment with 4-ClCH2C6H4SiCl3, 3-BrC3H6SiCl3, 3-IC3H6SiCl3 to afford a coupling layer; (2) quaternization...
We report the fabrication and test results for polymeric electro-optic modulators with a half-wave voltage of 0.8 V voltage-interaction length product 2.2 cm. These employ an optical push–pull architecture are made from poly(methylmethacrylate) high molecular hyperpolarizability polyene bridge-type chromophore. An coefficient 58 pm/V was obtained at 1318 nm wavelength. The guest–host polymer system exhibited thermal stability to 75 °C relatively stable nonlinearity ambient conditions....
The ^{13}C(α,n)^{16}O reaction is the main neutron source for slow-neutron-capture process in asymptotic giant branch stars and intermediate process. Direct measurements at astrophysical energies above-ground laboratories are hindered by extremely small cross sections vast cosmic-ray-induced background. We performed first consistent direct measurement range of E_{c.m.}=0.24 to 1.9 MeV using accelerators China Jinping Underground Laboratory Sichuan University. Our covers almost entire Gamow...
In the relentless pursuit of quantum computational advantage, we present a significant advancement with development Zuchongzhi 3.0. This superconducting computer prototype, comprising 105 qubits, achieves high operational fidelities, single-qubit gates, two-qubit and readout fidelity at 99.90%, 99.62%, 99.13%, respectively. Our experiments an 83-qubit, 32-cycle random circuit sampling on 3.0 highlight its superior performance, achieving 1×10^{6} samples in just few hundred seconds. task is...
Abstract An E parallel B type neutral particle analyzer (E//B NPA) with mass and energy resolution has been developed successfully conducted its first experiment on the HL-3 tokamak. The calibration of E//B NPA was performed using H + D beams a 300 kV ion accelerator. Results indicate that is capable detecting in range 27.4 keV to 462.4 15.6 233.4 keV, an less than 10%. Thanks background resolving ability LYSO+SiPM detector module, novel method employed for data analysis during Background...
Anion regulation to generate LiF-rich solid electrolyte interfaces (SEIs) represents a highly effective, convenient, and economical approach. The anion decomposition process is influenced by charge density concentration. However,...
Second harmonic generation measurements were performed using 1.064 μm pulses provided by a Nd:YAG laser. A bulk second-order susceptibility χ(2)z, zz = 2.1 × 10 − 9 esu was observed at room temperature, which is about 1.5 times the χ(2) value of quartz. values in poling field studied as function temperature; largest occurred nominal temperature 140 °C where ten larger than value.
Abstract Polyacrylonitrile fiber was treated with hydroxylamine to form a chelating containing the amidoxime group high adsorption capacity Au 3+ ion (up 626 mg/g, when nitrile conversion reaches 53.7%), reasonable mechanical properties, and good thermal stability; relationship among reaction conditions, structures, properties were investigated. The content rapidly increases steady value increasing time or HONH 2 • HCl concentration, strength drops linearly time, takes place at temperature...
The oral gingival barrier is a constantly stimulated and dynamic environment where homeostasis often disrupted, resulting in inflammatory periodontal diseases. Type 2 diabetes (T2D) has been reported to be associated with dysfunction, but the effect underlying mechanism are inconclusive. Herein, we performed single-cell RNA sequencing (scRNA-seq) of gingiva from leptin receptor-deficient mice ( db/db) examine heterogeneity context T2D. Periodontal health control characterized by populations...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPoled polymeric nonlinear optical materials. Exceptional second harmonic generation temporal stability of a chromophore-functionalized polyimideJiann T. Lin, Michael A. Hubbard, Tobin J. Marks, Weiping and George K. WongCite this: Chem. Mater. 1992, 4, 6, 1148–1150Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Published inissue 1 November...
Among the various methods to produce three-dimensional (3D) images, holography occupies a special niche. Indeed, holograms provide highly realistic 3D images with large viewing angle capability without need for eyewear. Such characteristics make them valuable tools wide range of applications such as medical, industrial, military, and entertainment imaging. To be suitable an updatable holographic display, material needs have high diffraction efficiency, fast writing time, hours image...
The nuclear shell structure, which originates in the nearly independent motion of nucleons an average potential, provides important guide for our understanding structure and underlying forces. Its most remarkable fingerprint is existence so-called `magic numbers' protons neutrons associated with extra stability. Although introduction a phenomenological spin-orbit (SO) coupling force 1949 helped explain magic numbers, its origins are still open questions. Here, we present experimental...
We have measured for the first time charge-changing cross sections ($\sigma_{\text{CC}}$) of $^{12-16}$C on a $^{12}$C target at energies below $100A$ MeV. To analyze these low-energy data, we developed finite-range Glauber model with global parameter set within optical-limit approximation which is applicable to reaction section ($\sigma_{\text{R}}$) and $\sigma_{\text{CC}}$ measurements incident from 10$A$ $2100A$ Adopting proton-density distribution known electron-scattering as well bare...
We present the charge-changing cross sections (CCCS) of 11−15C, 13−17N, and 15,17−18O at around 300 MeV/nucleon on a carbon target, which extends to p-shell isotopes with N<Z for first time. The Glauber model, considers only proton distribution projectile nuclei, underestimates by more than 10%. show that this discrepancy can be resolved considering contribution from charged-particle evaporation process (CPEP) following neutron removal. Using nucleon densities deformed relativistic...
The generator coordinate method (GCM) is an important tool of choice for modeling large-amplitude collective motion in atomic nuclei. computational complexity the GCM increases rapidly with number coordinates. It imposes a strong restriction on applicability method. In this work, we propose subspace-reduction algorithm that employs optimal statistical ML models as surrogates exact quantum-number projection calculations norm and Hamiltonian kernels. model space original reduced to subspace...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChromophoric self-assembled NLO multilayer materials: real time observation of monolayer growth and microstructural evolution by in situ second harmonic generation techniquesShlomo Yitzchaik, Stephen B. Roscoe, Ashok K. Kakkar, David S. Allan, Tobin J. Marks, Zuyan Xu, Tongguang Zhang, Weiping Lin, George WongCite this: Phys. Chem. 1993, 97, 27, 6958–6960Publication Date (Print):July 1, 1993Publication History Published online1 May 2002Published...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChromophoric self-assembled nonlinear optical multilayer materials. Synthesis, properties, and structural interconversions of assemblies with rodlike alkynyl chromophoresAshok K. Kakkar, Fuyuhiko Kubota, David S. Allan, Shlomo Yitzchaik, Stephen B. Roscoe, Tobin J. Marks, Weiping Lin, George WongCite this: Langmuir 1993, 9, 2, 388–390Publication Date (Print):February 1, 1993Publication History Published online1 May 2002Published inissue 1 February...