Feifei Liu

ORCID: 0000-0001-5532-2021
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About
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Research Areas
  • Plasmonic and Surface Plasmon Research
  • Photonic and Optical Devices
  • Advanced Fiber Laser Technologies
  • Metamaterials and Metasurfaces Applications
  • Orbital Angular Momentum in Optics
  • Advanced biosensing and bioanalysis techniques
  • Supercapacitor Materials and Fabrication
  • Graphene research and applications
  • Nonlinear Waves and Solitons
  • Advanced Sensor and Energy Harvesting Materials
  • Nonlinear Photonic Systems
  • Nanopore and Nanochannel Transport Studies
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Photonic Crystals and Applications
  • Image Processing Techniques and Applications
  • Optical Coatings and Gratings
  • Digital Holography and Microscopy
  • Polymer Nanocomposites and Properties
  • Non-Invasive Vital Sign Monitoring
  • ZnO doping and properties
  • Advancements in Battery Materials
  • Conducting polymers and applications
  • Robotic Locomotion and Control
  • Advanced Chemical Sensor Technologies
  • Bone Tissue Engineering Materials

University of Science and Technology Beijing
2020-2024

Shandong Jianzhu University
2021-2024

Beijing University of Posts and Telecommunications
2011-2024

Anyang Institute of Technology
2024

State Key Laboratory of Surface Physics
2018-2023

Jiangxi University of Science and Technology
2016-2023

Fudan University
2018-2023

East China Jiaotong University
2021-2023

Tianjin Normal University
2020-2023

Weifang Medical University
2023

Abstract Vectorial optical fields (VOFs) exhibiting arbitrarily designed wavefronts and polarization distributions are highly desired in photonics. However, current methods to generate them either require complicated setups or exhibit limited functionalities, which is unfavorable for integration-optics applications. Here, we propose a generic approach efficiently arbitrary VOFs based on metasurfaces full-matrix yet inhomogeneous Jones-matrix distributions. We illustrate our strategy with...

10.1038/s41377-021-00504-x article EN cc-by Light Science & Applications 2021-03-31

Here, a scheme for controllable nonreciprocal phonon laser is proposed in hybrid photonic molecule system consisting of whispering-gallery mode (WGM) optomechanical resonator and χ (2) -nonlinear WGM resonator, by directionally quantum squeezing one two coupled modes. The directional results chiral photon interaction between the resonators frequency shift squeezed with respect to unsqueezed bare mode. We show that can modify effective coupling analyze impacts driving direction extent on...

10.1364/oe.512280 article EN cc-by Optics Express 2024-01-03

10.1016/j.apcatb.2011.06.015 article EN Applied Catalysis B Environment and Energy 2011-06-27

Abstract Although metasurfaces have shown great potential for manipulating light, most previously realized meta-devices suffer from uncontrolled angular dispersions, making them unfavorable many applications. Here, we propose a general strategy to realize optical with desired dispersions based on carefully controlling both the near-field couplings between meta-atoms and radiation pattern of single meta-atom. Utilizing such strategy, experimentally demonstrate series predesigned including two...

10.1038/s41377-020-0313-0 article EN cc-by Light Science & Applications 2020-05-06

Ion transport in an artificial asymmetric nanoporous membrane, which is similar to biological ion channels, can be used for biosensing. Here, a dendrimer-Au nanoparticle network (DAN) situ assembled on anodic aluminum oxide (AAO) surface, forming DAN/AAO hybrid membrane. Benefiting from the high surface area and anion selectivity of DAN, prepared presents selective transport. Under bias potential, diode-like current–potential (I–V) response observed. The obtained ionic current rectification...

10.1021/acs.nanolett.9b05066 article EN cc-by Nano Letters 2020-02-24

A biomimetic nanochannel-ionchannel hybrid coupled with electrochemical detector was developed for label-free and ultrasensitive detection of microRNA (miRNA) in cells. Probe single stranded DNA (ssDNA) first immobilized on the outer surface membrane, which can hybridize target miRNA Due to unique mass transfer property hybrid, DNA-miRNA hybridization kinetics be sensitively monitored real-time using technique. More importantly, due super small size ionchannels, probe immobilization process...

10.1021/acs.analchem.8b05536 article EN Analytical Chemistry 2019-02-13

On-chip photonic systems play crucial roles in nanoscience and nanoapplications, but coupling external light to these subwavelength devices is challenging due a large mode mismatch. Here, we establish new scheme for realizing highly miniaturized couplers efficiently exciting on-chip controllable way. Relying on both resonant Pancharatnam–Berry mechanisms, our meta-device can couple circularly polarized surface plasmon, which then focused into spot placed with target device. We experimentally...

10.1021/acs.nanolett.3c00310 article EN Nano Letters 2023-04-07

Abstract A device that can couple propagating light into surface plasmon polaritons (SPPs) focused a small region is highly desired for on‐chip photonics applications (e.g., energy‐harvesting, sensing, etc.). However, current technologies suffer from large footprint, low working efficiency, and insufficient light‐manipulation freedom. Here, generic approach designing plasmonic lenses to generate predesigned vector SPP vortices with high efficiencies established. Constructed set of meta‐atoms...

10.1002/lpor.202201001 article EN Laser & Photonics Review 2023-03-25

Abstract Phonon lasers have long been a subject of interest and possess broad application prospects. Much effort is devoted to lay the foundation realizing phonon using cavity magnomechanical systems, but up now no related work carried out explore quantum‐squeezing‐engineered laser action in magnomechanics. Here, investigated three‐mode system built based on microwave resonator‐yttrium iron garnet sphere composite device, focusing effect induced by magnon‐mode squeezing. It found that magnon...

10.1002/qute.202400200 article EN Advanced Quantum Technologies 2024-06-27

Techniques for scaling-up the direct-current (dc) triboelectricity generation in MoS2 multilayer-based Schottky nanocontacts are vital exploiting nanoscale phenomenon real-world applications of energy harvesting and sensing. Here, we show that dc output can be realized by using various heterojunctions including metal/semiconductor (MS), metal/insulator (tens nanometers)/semiconductor (MIS), semiconductor/insulator (a few (SIS) moving structures. It is shown tribo-excited energetic charge...

10.1021/acsami.9b09851 article EN ACS Applied Materials & Interfaces 2019-09-03

Bone implant materials cause the most common complication of bone infections in orthopedic surgery, resulting failure. Antibiotic treatment leads to problems such as bacterial resistance and reduced osteogenic capacity. In this study, dopamine (DA) was self-polymerized on surface Polylactic acid (PLLA)/Hydroxyapatite (HA) nanowire composite fibers form an adhesive polydopamine (PDA) membrane, a stable silver-nanoparticles (Ag-NPs) coating layer constructed it by electrochemically driven Ag+...

10.1016/j.jare.2019.10.002 article EN cc-by-nc-nd Journal of Advanced Research 2019-10-09

An improved architecture for all-Si based photoelectronic detectors has been developed, consisting of a specially designed metasurface as the antenna integrated into Si nanowire array on insulator by an electron beam lithography self-alignment process. Simulation using Finite Difference Time Domain (FDTD) method was carried out to ensure perfect absorption light detector. Optic measurement shows 90% at 1.05 μm. Photoelectronic characterization demonstrates responsivity and detectivity high...

10.1021/acsnano.9b04236 article EN ACS Nano 2019-07-03

Abstract Although tip‐enhanced tribo‐tunneling in metal/semiconductor point nanocontact is capable of producing DC with high current density, scaling up the process for power harvesting practical applications challenging due to complexity tip array fabrication and insufficient voltage output. Here, it demonstrated that mechanical contact between a carbon aerogel silicon (SiO 2 /Si) interface naturally forms multiple nanocontacts generation an open‐circuit output ( V OC ) reaching V,...

10.1002/aelm.201900464 article EN publisher-specific-oa Advanced Electronic Materials 2019-08-22

10.1016/j.cnsns.2024.107961 article EN Communications in Nonlinear Science and Numerical Simulation 2024-03-11
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