A5100844342- Advanced Fiber Laser Technologies
- Laser-Matter Interactions and Applications
- Solid State Laser Technologies
- Photonic Crystal and Fiber Optics
- 2D Materials and Applications
- Gut microbiota and health
- Perovskite Materials and Applications
- Diamond and Carbon-based Materials Research
- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Ferroelectric and Piezoelectric Materials
- Semiconductor materials and devices
- Mechanical and Optical Resonators
- Topological Materials and Phenomena
- Bioinformatics and Genomic Networks
- Random lasers and scattering media
- Orbital Angular Momentum in Optics
- Nutritional Studies and Diet
- Semiconductor materials and interfaces
- Statistical Methods and Inference
- Advanced Optical Sensing Technologies
- Diet and metabolism studies
- Molecular Junctions and Nanostructures
- Luminescence and Fluorescent Materials
- Machine Learning in Healthcare
National University of Defense Technology
2022-2025
Nanjing University
2018-2025
Université Bourgogne Franche-Comté
2025
University of Miami
2025
North Sichuan Medical University
2024
Beijing Children’s Hospital
2024
Peking University
2023-2024
Shandong First Medical University
2023-2024
Xi'an Peihua University
2024
State Key Laboratory of Food Science and Technology
2023-2024
Abstract Polarization‐sensitive infrared photodetectors have vast application prospects in imaging systems and polarization sensors due to the addition of new detection dimensions beyond wavelength intensity. However, most polarization‐sensitive are operated visible range still encounter challenges limited responsivity ( R ) ratio (PR) under short‐wave illumination. To address these issues, a vertical heterostructure β‐In 2 Se 3 ‐on‐Te is reported, achieving high‐performance (SWIR) region....
Laser state active controlling is challenging under the influence of inherent loss and other nonlinear effects in ultrafast systems. Seeking an extension degree freedom optical devices based on low-dimensional materials may be a way forward. Herein, anisotropic quasi-one-dimensional layered material Ta
Ti3CN, as a typical hetero-MXene, has attracted tremendous attention for its unique properties. However, ultrafast photonics applications are still rare. Here, the few-layer Ti3CN MXene was successfully prepared by selective etching and molecular delamination technique. The nonlinear optical response of at 640 nm studied using open-aperture Z-scan as-prepared sample exhibited excellent saturable absorption characteristics, resulting in coefficient β −4.05 × 10-2 cm/GW, which one order...
Chiral layered coordination polymers have attracted considerable attention not only because of their intriguing physicochemical properties but also ability to exfoliate into chiral nanosheets. metal phosphonates with structures are particular interest due relatively high thermal and water stabilities, corresponding nanosheets rarely reported on. Herein, we report on a pair enantiopure zinc the formula S- R-Zn8(cyampH)8Cl8 (S-Zn, R-Zn), where R-cyampH2 represent...
This study introduces a novel and efficient approach for constructing stimulus-responsive polycarbonates with tunable stimulus sensitivity by tailoring nanoparticle core hydrophobicity.
We report a passively mode-locked Pr:LiYF4 (Pr:YLF) visible laser using palladium diselenide (PdSe2) as saturable absorber (SA) for the first time, to best of our knowledge. The nonlinear optical properties two-dimensional (2D) PdSe2 nanosheets in band were studied by open-aperture Z-scan technique. results indicate significant absorption region. Furthermore, continuous wave (CWML) based on SA was successfully realized. Ultrashort pulses short 35 ps obtained at 639.5 nm with repetition rate...
Abstract Background The gut microbiome is closely associated with health status, and any microbiota dysbiosis could considerably impact the host’s health. In addition, many active consortium projects have generated reference datasets available for large-scale retrospective research. However, a comprehensive monitoring framework that analyzes status quantitatively present bacteria-to-health contribution has not been thoroughly investigated. Methods We systematically developed statistical...
The van der Waals layered material MnBi2Te4, as a magnetic topological insulator, has attracted tremendous interest for novel physics research in the fields of condensed matter and materials science. However, nonlinear optical properties MnBi2Te4 its applications ultrafast optics have rarely been explored. In this study, high-quality nanosheets successfully synthesized by self-flux method. morphology, chemical composition, properties, characteristics were systematically investigated....
Polarization plays a paramount role in scaling the optical network capacity. Anisotropic two-dimensional (2D) materials offer opportunities to exploit polarization-sensitive responses various photonic and optoelectronic applications. However, exploration of anisotropy fiber in-line devices, critical for ultrafast pulse generation modulation, remains limited. In this study, we present fiber-integrated device based on single-crystalline tellurene nanosheet. Benefiting from chiral-chain crystal...
The combination of Raman amplification and optical pulse coding (OPC) is proposed to reduce the frequency uncertainty in a long-distance Brillouin time-domain analyzer (BOTDA) under higher spatial resolution. experimental characterization temperature sensing with measurement accuracy ~ 1°C 2.5-m resolution over whole length fiber demonstrated. composed 49.6-km at 10.8-GHz shift (BFS) 25-km 11.005 GHz.
A CsCu 2 I 3 SA-based passively mode-locking fiber laser was demonstrated. The could operate stably for at least five months, which will potentially unlock the pathways ultrafast photonics based on lead-free halide perovskites.
Abstract Saturable absorber is a key component in ultrafast pulsed laser systems, which are pivotal physics, high‐speed communication, etc. 2D materials appear to be superior candidates as saturable absorbers for compact fiber lasers recent years due their wide band response and ease of integration. However, the integration mode‐locked devices inevitably involves contamination or polymer interface between layered fiber, contributes high start‐up threshold lasers. This study develops an...
Unintended postoperative hypothermia in infants is associated with increased mortality and morbidity. We noted consistent postoperatively more than 60% of our neonatal intensive care (NICU) babies. Therefore, we set out to determine whether a targeted quality improvement (QI) project could decrease rates infants.
Abstract Polarimetric photodetectors hold significant promise in optical communication and polarization imaging applications due to their additional ability detect states of light. The strategy multiple modulation plays a crucial role performance optimization multi‐valued logic output, enabling higher information transmission density clearer recognition. Following this context, Ta 2 PdSe 6 /MoTe semimetal/semiconductor heterojunction‐based polarimetric photodetector with multi‐control that...
Self-assembled polymeric micelles formed from amphiphilic block copolymers offer a promising strategy for enhanced drug delivery due to their biocompatibility and controlled release. However, challenges such as poor colloidal stability under diluted conditions degradation during storage circulation limit further applications. To address these issues, we developed straightforward method constructing cross-linked polycarbonate that enhance while allowing stimuli-responsive delivery. By...
The random distributed feedback fiber laser (RDFB-FL), firstly proposed and demonstrated by S. K. Turitsyn et al., has been designated as the significant breakthrough in fields of physics nonlinear optics. In this paper, fully Raman amplification approach, based on novel concept RDFB-FL, is presented for first time. As a typical proof-of-concept, high-performance sensing with ±1°C temperature accuracy ±2m spatial resolution, over entire 122km long-range Brillouin optical time-domain analyzer...
γ-graphyne, a two-dimensional carbon material, has attracted much attention due to its unique characteristics, such as high carrier mobility and stability. In the present study, γ-graphyne saturable absorber (SA) was fabricated characterized. The linear optical absorption in spectral range from visible mid-infrared well nonlinear character of SA were investigated. Passively Q-switched solid-state lasers emitting at 639 nm, 1342 nm 1932 realized using SA. results indicate that could be...
We demonstrate the direct generation of visible vortex beams (LG01 mode) from a doughnut-shaped diode-pumped Pr:YLF laser. In continuous-wave mode, maximum output power was 36 mW at 523 nm, 354 607 838 639 722 721 respectively. Moreover, based on this operation, orange and red passively Q-switched lasers were also achieved by inserting Co:MgAl2O4 crystal into laser cavity as saturable absorber. The shortest pulse width 58 ns for 34 Our work provides reliable efficient method potential applications.
We experimentally demonstrated a cascaded internal phase control technique. A laser array with 12 channels was divided into three sub-arrays and stage array, phases of the were locked by four controllers based on stochastic parallel gradient descent (SPGD) algorithm, respectively. In this way, whole locked, visibility interference pattern emitted in far field ∼93%. addition, technique has advantage element expanding can be further used high-power coherent beam combination (CBC) system due to...
This article proposes two new classes of nonparametric tests for the correct specification linear spatial autoregressive models based on "integrated conditional moment" approach. Our test statistics are constructed as continuous functionals a residual marked empirical process well its projected version. We derive asymptotic properties under null hypothesis, alternative and sequence local alternatives. The proposed do not involve selection tuning parameters such bandwidths able to detect...