A5034029626- Advanced Photocatalysis Techniques
- Spectroscopy and Laser Applications
- Gas Sensing Nanomaterials and Sensors
- Copper-based nanomaterials and applications
- Advanced Optical Sensing Technologies
- Atomic and Subatomic Physics Research
- TiO2 Photocatalysis and Solar Cells
- Nanoplatforms for cancer theranostics
- Advanced Fiber Laser Technologies
- Spectroscopy Techniques in Biomedical and Chemical Research
- Quantum Information and Cryptography
- Ga2O3 and related materials
- Atmospheric chemistry and aerosols
- Perovskite Materials and Applications
- Marine Biology and Environmental Chemistry
- Neuroscience and Neural Engineering
- Antimicrobial Peptides and Activities
- Bacterial biofilms and quorum sensing
- Advanced Sensor and Energy Harvesting Materials
- Plasmonic and Surface Plasmon Research
- Gold and Silver Nanoparticles Synthesis and Applications
- Photorefractive and Nonlinear Optics
- Graphene and Nanomaterials Applications
- Surface Modification and Superhydrophobicity
- Advanced Fluorescence Microscopy Techniques
Qingdao University
2024-2025
East China Normal University
2019-2024
State Key Joint Laboratory of Environment Simulation and Pollution Control
2023-2024
Peking University
2023-2024
Changchun University of Technology
2020-2021
Wuhan Textile University
2018-2020
Yunnan University
2012
Beijing University of Chemical Technology
2006
Ultrasensitive spectroscopy is an essential component in mid-infrared (MIR) technology. However, the drawbacks of MIR detectors pose challenges to robust at single-photon level. We propose frequency upconversion nonlocally mapping information time domain. Broadband photons from spontaneous parametric downconversion are frequency-upconverted near-infrared band with quantum correlation preservation. Via group delay fiber, spectral within a 1.18-micrometer bandwidth 2.76 3.94 micrometers then...
Promoting the sensitivity of mid-infrared (MIR) spectroscopy to single-photon level is a critical need for investigating photosensitive biological samples and chemical reactions. MIR based on frequency upconversion compelling pioneer allowing high-efficiency spectral measurement with well-developed detectors, which overcomes main limitations high thermal noise current detectors. However, from other nonlinear processes caused by strong pump fields hinders development upconversion-based reach...
As a natural fiber, cashmere is favored for its softness, finesse, and warmth. However, poor flame-retardant properties seriously affect the safety of cashmere. Current treatments tend to lead heavy metal pollution significantly reduce wearer comfort. In this work, environmentally friendly calcium alginate fibers were blended with obtain fibers. The exhibited good hygroscopicity softness. incorporation enhanced flame retardancy blends, LOI reached 40.2 without smoldering. It was due stable...
Abstract CMC/BiOCl 3D hierarchical nanostructures with exposed {001} facets were successfully synthesized under the control of carboxymethyl cellulose (CMC). The physicochemical properties as‐synthesized samples characterized by X‐ray powder diffractometer (XRD), scanning electron microscopy (SEM), transmission microscope (TEM), UV–vis diffused reflectance spectra (DRS), Fourier transformed infrared (FT‐IR), Brunauer‐Emmett‐Teller (BET) measurements, and spin resonance (ESR). results...
Mid-infrared (MIR) frequency upconversion presents a powerful tool for MIR photon detection at room temperature. However, the introduction of strong pump light will exacerbate limitations upconverted thermal radiation and parametric fluorescence on detectability in broadband upconversion. Here, synchronized spectrometer system based step-chirped poled LiNbO3 crystal is demonstrated. This integrated with spontaneous downconversion (SPDC) sum-frequency generation (SFG) to form synchronous...
Abstract Herein, we successfully developed a new multifunctional antibacterial system, which combined mechano-bactericidal (Au-nanostars) and photothermal (MoS 2 ) mechanism. Meanwhile, the targeting molecule of vancomycin was modified on surface MoS –Au nanocomposites (Van-MoS –Au), that generally yield high efficiency in performance due to their effective working radii. Van-MoS were capable completely destroying both gram-negative ( E. coli gram-positive B. subtilis bacteria under 808 NIR...
In this paper, we reconstructed the positive operator-valued measure (POVM) of a photon-number-resolving detector (PNRD) based on multi-pixel photon counter (MPPC) by means quantum tomography (QDT) at 791 nm and 523 nm, respectively. MPPC is kind spatial-multiplexing PNRD with silicon avalanche photodiode (Si-APD) array as receiver. Experimentally, characteristics were calibrated 2 MHz two different wavelengths. The POVM elements given QDT. fidelity higher than 99.96%, which testifies that...
Semiconductor photocatalyst has attracted a great deal of attention in environmental wastewater treatment. As versatile semiconductor materials, ZnO nanocomposites composed two or more oxide particles with different energy levels exhibit better photocatalytic activity due to efficient charge separation. The alkali metal (Mn,Fe) oxide–ZnO have reported little work on the photodegradation organic contaminants under visible light irradiation. In this paper, main research is focused preparation...
Interaction‐free measurement (IFM)‐based single‐photon interference is developed as a powerful platform for revealing object information in quantum metrology, where the presence of sample identified without photon “touching” an interferometer. Herein, method obtaining spectroscopic properties with interaction‐free spectroscopy (IFQS) based on spectrum‐correlated pairs by spontaneous parametric down‐conversion (SPDC) proposed and implemented. Infrared signal photons around 1557 nm from SPDC...
Plasmonic nanostructures offer a prominent foundation for plasmon sensing owing to their capacity confine light within nanoscale regions and enhance the intensity of local electromagnetic field. Nevertheless, development plasmonic sensors that operate in midinfrared (MIR) region still presents notable obstacle, primarily due limited detection sensitivity commercial MIR detectors. To break this bottleneck, we demonstrate characterization nanostructures' spectral response using time-stretched...
The onset temperature of smoldering for calcium alginate fibers was determined across several densities.
In recent years, quantum detector tomography (QDT) is widely used in many fields, such as non-Gaussian states preparation, metrology, communication and so forth. this paper, we QDT to completely characterize a photon-number-resolving (PNRD) based on multi-pixel photon counter (MPPC) at 650 nm, which operated continuous wave (CW) mode. Reconstructing the positive operator-valued measure (POVM) accurately by could help us theoretically derived operation performance of MPPC sensing with...
Abstract In this invited paper, we present an overview of the multi‐pixel photon counter (MPPC), which is a kind spatial‐multiplexed photon‐number‐resolving detector. We review operation principles MPPC, its characterization via quantum detector tomography, and applications in research fields such as information, remote sensing biological medicine. Finally, discuss current progress on improvement MPPC.