A5038333747- Photonic and Optical Devices
- Electrospun Nanofibers in Biomedical Applications
- Photorefractive and Nonlinear Optics
- Advanced Fiber Laser Technologies
- Mechanical and Optical Resonators
- Advanced Thermoelectric Materials and Devices
- Membrane Separation Technologies
- Graphene and Nanomaterials Applications
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Adsorption and biosorption for pollutant removal
- Surface Modification and Superhydrophobicity
- Quantum optics and atomic interactions
- Metal-Organic Frameworks: Synthesis and Applications
- GaN-based semiconductor devices and materials
- Advanced Photocatalysis Techniques
- Nanomaterials for catalytic reactions
- Graphene research and applications
- Chalcogenide Semiconductor Thin Films
- Thermal Radiation and Cooling Technologies
- Physics of Superconductivity and Magnetism
- TiO2 Photocatalysis and Solar Cells
- ZnO doping and properties
- Quantum and electron transport phenomena
- Neural Networks and Reservoir Computing
Tiangong University
2019-2024
Qingdao University
2023-2024
Purdue University West Lafayette
2017-2022
China Academy of Engineering Physics
2010-2020
Indiana University – Purdue University Indianapolis
2020
Zhejiang Province Institute of Architectural Design and Research
2020
In-Q-Tel
2019
Guangxi University
2016-2017
We investigated the optical properties of rare-earth ions (Yb3+ and Er3+) implanted into lithium niobate (LN) crystals observed superluminescent emission from a sheet Yb in Yb-implanted LN crystal (Yb:LN). Moreover, by directly integrating Er-implanted (Er:LN) with silicon photonic chip waveguide resonator structures, we evanescent coupling photoluminescent light Er to modes microcavity. measured an quality factor about 104 modification Er3+ integrated structure. The platform can ultimately...
We introduce our design, simulation, and fabrication for cm-long waveguides micro-ring resonators based on fully-etched thin-film lithium niobate insulator (LNOI) incorporated with rare earth ions. implant ytterbium ions (Yb3+) into the crystalline host study their optical properties at 4 K temperature. measure an intrinsic quality factor of higher than 2×106 after postimplantation annealing. characterize photoluminescence spectrum, lifetime, absorption Yb3+ Incorporation LNOI as a nonlinear...
In this study, cross-linked cationic starch was synthesized with corn as a raw material, epichlorohydrin agent, and 3-chloro-2-hydroxypropyl trimethylammonium chloride etherification respectively, it characterized by X-ray photoelectron spectroscopy, powder diffraction, scanning electron microscopy, thermogravimetry. The spectroscopy results showed that N appeared on the surface of starch; is, quaternary ammonium group introduced. diffraction indicated although crystallinity lower than...
In this research, electrospinning was used to prepare sodium alginate (SA)/polyvinyl alcohol (PVA) composite nanofiber membranes. Effects of parameters on the morphology and fiber diameter were investigated, an orthogonal design chosen optimize parameters. The optimized membranes applied as adsorbent for removal methylene blue (MB), basic fuchsin (BF), methyl orange (MO). Kinetic isotherm adsorption effects different experimental conditions such pH, contact time, initial dye concentration...
ZnO-based materials show promise in energy harvesting applications, such as piezoelectric, photovoltaic and thermoelectric. In this work, vertical Schottky barrier solar cells were fabricated by MOCVD de- position of ZnO thin films on ITO back ohmic contact, while Ag served the top contact. Various rapid thermal annealing conditions studied to modify carrier density crystal quality. Greater than 200 nm thick formed polycrystalline structure, used demonstrate cells. I-V characterizations...
By engineering atomic geometries composed of nearly 1000 segments embedded in micro-resonators, we observe Bragg resonances induced by the lattice at telecommunication wavelength. The geometrical arrangement erbium atoms into a inside silicon nitride (SiN) microring resonator reduces scattering loss wavelength commensurate with lattice. We confirm dependency light emission to positions and spacing also Fano interference between resonant modes system.
The magnetic composite hydrogel was prepared by using graphene oxide (GO), carboxymethyl starch (CMS) and Fe 3 O 4 as raw materials via a facile one-step reaction route.Magnetic CMS/GO applied an adsorbent for methylene blue (MB) characterized scanning electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, thermogravimetry vibrating sample magnetometer.Kinetics, isotherm thermodynamics of adsorption were investigated.The results show that the MB onto well-described...
We demonstrate an optomechanical platform based on a levitated small high reflective (HR)-coated mirror above superconductor disk. use this at ambient condition to detect the magnetic field with sensitivity of 370 pT /Hz. Moreover, is used as end Fabry–Pérot cavity create optical resonance that could be study coherent radiation pressure forces. The provides sensitive tool measure various forces exerted and it offers possibility trapping macroscopic objects.
Abstract Electrospinning technology has great advantages in the preparation of continuous nanofiber materials. Nanofiber yarn better performance fiber orientation and mechanical properties than traditional membrane. In this paper, spinning principle structure electrospun yarns recent years are summarized. terms structure, can be divided into pure micro/nanofiber composite yarns. Based on principle, type twist type, core-spun yarn, wrapped blended yarn. Through analysis devices microstructure...
<div class="section abstract"><div class="htmlview paragraph">Recently, the market share of electric vehicles is becoming increasingly obvious. It expected that are quieter than fuel vehicles. Actually, without cover low-frequency engine noise, high-frequency noise more prominent, which seriously affect perceived sound quality. The present work related tonal resulted from drive system (EDS), one fundamental sources for battery vehicle (BEV). dominant observed in interior 26th and...