A5101858480- Advanced Fiber Optic Sensors
- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Photonic Crystal and Fiber Optics
- Optical Network Technologies
- Metal and Thin Film Mechanics
- Advanced Photonic Communication Systems
- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Orbital Angular Momentum in Optics
- Cooperative Communication and Network Coding
- Diamond and Carbon-based Materials Research
- Surgical Simulation and Training
- Advanced MIMO Systems Optimization
- Catalytic Processes in Materials Science
- Analytical Chemistry and Sensors
- Advanced DC-DC Converters
- Electrochemical sensors and biosensors
- Advanced biosensing and bioanalysis techniques
- Semiconductor materials and devices
- Graphene research and applications
- ZnO doping and properties
- Advanced Wireless Communication Technologies
- Advanced Battery Materials and Technologies
First Affiliated Hospital of Kunming Medical University
2025
Kunming Medical University
2025
Shanghai Jiao Tong University
2024
Huazhong University of Science and Technology
2021-2024
Sinopec (China)
2024
Chinese Academy of Sciences
2024
Technical Institute of Physics and Chemistry
2024
Shenzhen Technology University
2024
Shanghai Institute of Technical Physics
2023
Chongqing University of Posts and Telecommunications
2017-2023
We demonstrate a compact Q-switched dual-wavelength erbium-doped fiber (EDF) laser based on graphene as saturable absorber (SA). By optically driven deposition of core, the SA is constructed and inserted into diode-pumped EDF cavity. Also benefiting from strong third-order optical nonlinearity to suppress mode competition EDF, stable Q-switching operation has been achieved using two-reflection peak Bragg grating external cavity mirror. The low pump threshold 6.5mW at 974nm wide range...
We propose a novel material/electrode design formula and develop an engineered self-supporting electrode configuration, namely, silicon nanoparticle impregnated assemblies of templated carbon-bridged oriented graphene. have demonstrated their use as binder-free lithium-ion battery anodes with exceptional lithium storage performances, simultaneously attaining high gravimetric capacity (1390 mAh g(-1) at 2 A respect to the total weight), volumetric (1807 cm(-3) that is more than three times...
In this letter, we consider a two-way relay channel (TWRC) with two end nodes and k nodes, where have the full channel-state information (CSI) only channel-amplitude (CAI). With objective of minimizing transmit power consumption at required end-to-end rates, energy-efficient selection (RS) allocation (PA) scheme is studied for TWRC based on analog network coding (ANC). Firstly, propose an single RS PA (E-SRS-PA) scheme, best node selected to minimize total power. Then, prove that E-SRS-PA...
We demonstrate the fabrication of graphene-deposited tapered fibers (GDTFs), which can be used as saturable absorbers (SAs) for pulsed lasers. The advantages GDTF SAs include flexibility, all-fiber configuration, and high optical damage threshold. process is based on interaction evanescent field a fiber with graphene. By in situ monitoring transmitted power, deposition controlled, desirable level nonsaturable absorption loss fabricated. also study dynamic by employing different waist...
Graphene-sheet-supported uniform ultrasmall (≈3 nm) silicon quantum dots have been successfully synthesized by a simple and effective self-assembly strategy, exhibiting unprecedented fast, surface-controlled lithium-storage behavior outstanding properties including extraordinary rate capability remarkable cycling stability, attributable to the intrinsic role of approaching downsizing limit silicon. As service our authors readers, this journal provides supporting information supplied authors....
We report on the generation of multiwavelength passively mode-locked pulses in an erbium-doped fiber laser (EDFL) based interaction graphene and fiber-taper evanescent field. Graphene-polymer nanocomposites aqueous suspension are trapped by optical light deposited taper region. The graphene-deposited device not only acts as excellent saturable absorber for mode-locking, but also induces a polarizing effect to form artificial birefringent filter selection. By simultaneously exploiting both...
We experimentally confirm that graphene within fiber laser cavities can generate four-wave-mixing (FWM) by observing the spectral broadening and transition from single-longitudinal-mode oscillation to multiple-longitudinal-mode one. Then, simultaneously exploiting graphene-induced nonlinear FWM its super-broadband saturable absorption, we further achieve for first time best of our knowledge, multiwavelength Q-switched Yb <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
A broadband tunable orbital angular momentum (OAM) mode converter based on a helical long-period fiber grating (HLPFG) inscribed in conventional single-mode (SMF) is experimentally demonstrated. The proposed all-fiber OAM the core-cladding dual resonance near dispersion turning point (DTP). can operate with bandwidth of 303.9 nm @ −3 dB and 182.2 −10 dB, which is, as far we know, widest for SMF. Furthermore, be dynamically tuned within large dynamic range (>80 nm) by simply twisting...
ZrN and ZrSiN films were prepared in an rf sputtering apparatus that has a pair of targets facing each other (referred to as the target—type sputtering). Films deposited on silicon wafers without bias application or substrate heating order examine only effect addition transition metal nitride films. The contents zirconium, nitrogen, determined with electron probe microanalyzer. transmission microscopy studies carried out x-ray diffraction. For high resolution observation, field emission type...
We propose and experimentally demonstrate a stable multiwavelength erbium-doped fiber (EDF) ring laser based on four-wave-mixing of atomic few-layer graphene. The compact cavity consists 3-m EDF, an optically deposited ultrathin graphene device, polarization-maintaining Sagnac loop filter. comparison between the without with device shows that highly nonlinear can be helpful to mitigate mode competition EDF stabilize oscillation. Under assistance power-equalized eleven-channel simultaneous...
A novel chemodosimeter 4 for fluoride ions (F−) based on deprotonation of the C–H group followed by an autoxidative decyanation process has been developed first time, with a "naked-eye" response (OFF–ON–OFF) and ratiometric chromofluorogenic selective sensing F−.
We design an ultrabroadband polarization splitter based on three-core photonic crystal fiber (PCF). A modulation core and two fluorine-doped cores are introduced to achieve ultrawide bandwidth. The properties of PCF modeled by using the full-vector finite element method along with beam propagation method. Numerical results demonstrate that 320 nm bandwidth extinction ratio as low −20 dB can be achieved 52.8 mm long PCF. This also has high compatibility standard single-mode fibers input...