Naixing Feng

Naixing Feng
Xiamen University | XMU · Department of Mechanical and Electrical Engineering

Professor

About

62
Publications
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734
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Introduction
Naixing Feng studied and worked as a Visiting Scholar supported by the CSC in the department of electrical and computation engineering from 2015 to 2016 in Duke University, USA. He received his Ph.D. degree in the College of Electronic Science and Technology from Xiamen University, Xiamen, China, in 2018. He currently is Associate Professor of College of Electronic Science and Technology, Shenzhen University, China. He has appeared around 40 papers published by refereed international journals and conference and is the holder of 1 patent. His current research interests are mainly in the areas of computational electromagnetics and acoustics, Photonic and Nano materials and their applications.

Publications

Publications (62)
Article
A liquid crystal-modulated Fano resonator is designed, which has high sensitivity, tunable operating band and adjustable sensing range at the same time. The Fano resonator is constructed by attaching a ring above a main channel and connecting a groove beneath it. With the interaction of the discrete mode provided by the ring and the continuous mode...
Preprint
Full-text available
The rapidly growing global data usage has demanded more efficient ways to utilize the scarce electromagnetic spectrum resource. Recent research has focused on the development of efficient multiplexing techniques in the millimeter-wave band (1-10 mm, or 30-300 GHz) due to the promise of large available bandwidth for future wireless networks. Frequen...
Article
Recently and successfully, the Chang’E-5 (CE-5) lander was launched on a mission to bring 1.731 kg of lunar soil back to Earth. To investigate various compositions of lunar regolith, we apply the Lunar Regolith Penetrating Radar (LRPR) as the same scientific payload installed on the CE-5 lander. Based on the high-accuracy imaging technique, we achi...
Article
Full-text available
In this article, an efficient Z-transform-based finite-difference time-domain (Z-FDTD) is developed to implement and analyze electromagnetic scatterings in the 3D biaxial anisotropy. In terms of the Z-transform technique, we first discuss the conversion relationship between time- or frequency-domain derivative operators and the corresponding Z-doma...
Article
In this article, we develop the efficacious system-combined-based approximate Crank-Nicolson finite-difference time-domain (SC-ACN-FDTD) method which can be applied to electromagnetic scattering. After being processed by the matrix form with the discrete time, the electric and magnetic fields from Maxwell's equations are both unified as the unique...
Article
Compared with other optical diffractive neural networks, the express wavenet (ExWave) is an improved and efficient network which adopts much fewer parameters. For advantages of the ExWave, firstly, the wavelet-like pattern is used to modulate the phase of optical waves; secondly, the number of parameters can be reduced from O(n²) to O(n), for the i...
Article
Alternative unsplit-field-based absorbing boundary condition (ABC) computation approach for the finite-difference time-domain (FDTD) is efficiently proposed based upon the deep differentiable forest (DDF) model which is introduced to replace the conventional perfectly matched layer (PML) ABC during the computation process of FDTD. The field compone...
Article
In order to further alleviate computational burdens and enhance accuracies, we propose an efficient amelioration on the complex-frequency-shifted perfectly matched layer (CFS- PML) via introducing both direct Z-transform (DZT) and matrix exponential (ME) methods for terminating the finite-difference time-domain (FDTD) region. The method is here ref...
Article
Full-text available
In this paper, a high-accurate technique with non-uniform grids is introduced into a system-combined alternative-direction-implicit finite-difference time-domain (SC-ADI-FDTD) algorithm, and then successfully used to analyze electromagnetic propagations. To our knowledge, the conventional FDTD with non-uniform grids can be effectively deal with som...
Article
Full-text available
To simulate complex subsurface sensing and imaging problems with both propagating and evanescent waves by the finite-difference time-domain (FDTD) method, the highly-accurate second-order perfectly matched layer (SO-PML) formulations based on the direct Z-transform (DZT) and the matrix exponential (ME) techniques are compactly and efficiently propo...
Article
In this paper, we rapidly and accurately solve out reflection and transmission coefficients in the multi-layered fully anisotropic media (MFAM) based on the transfer matrix method (TMM) so that we could find out the energy transmission course (ETC) of plane waves which transmit through MFAM in the air background. Beginning with the Maxwell’s equati...
Article
Full-text available
In this response letter, we focus on replying theses three comments so that a proposed auxiliary-differential-equation-based (ADE) Crank-Nicolson finite-difference time-domain method with direct-splitting technique (CNDS-FDTD) can be considered as an original manuscript published in IEEE OJAP. Moreover, related applications in modeling 2D material...
Article
Full-text available
In asymmetric photocatalytic reactions, it is necessary to study the mechanism of the asymmetric electromagnetic interaction between molecules and light. In this work, we theoretically studied the electromagnetic interactions between the light-induced charge transfer reaction and the chiral reaction of PM567 dye. We found that the chiral responses...
Article
Full-text available
Incorporating a truncation of the complex-frequencyshifted perfectly matched layer (CFS-PML), the direct-splittingbased Crank-Nicolson finite-difference time-domain (CNDSFDTD) is developed and applied to the infrared two-dimensional layered material (2DLM) black phosphorous (BP) metasurface implementations on the all-dielectric nanostructure. To im...
Article
Full-text available
Mid-infrared absorption spectroscopy is a powerful tool to identify analytes by detecting their material fingerprint in a label-free way, but it faces barriers on trace-amount analysis due to the difficulties in enhancing the broadband spectral signals. Here, we propose a sensing scheme based on the angular scanning of polarized light on a dielectr...
Article
Full-text available
New phases of group IV-VI Semiconductors in the 2D hexagonal structures are predicted and the unusual physical properties are revealed. The structures of monolayer group IV-VI Semiconductors are similar to blue phosphorene and each unit has the same ten valence electrons. The band gap of 2D hexagonal group IV-VI semiconductors depends on both the t...
Article
Full-text available
As an emerging anisotropic 2D material, few-atomic-layer black phosphorus (BP) has shown some promising potentials for infrared optoelectronics. Engineering and enhancing its light-matter interaction is significant for many advanced photonic devices. In view of this, we aim to achieve perfect infrared absorption in monolayer BP with/without subwave...
Article
A finite-difference time-domain (FDTD) method is developed to analyze electromagnetic scattering from threedimensional (3-D) fully anisotropic periodic structures impinged by obliquely incident plane waves. Starting from Maxwell’s curl equations, we employ material transformation matrices to link the update of the electric and magnetic fields in th...
Article
Adopting the direct Z-transform (DZT) method due to its higher accuracy instead of the approximate Z-transform (AZT) methods, efficient and switchable truncations between the 1st and 2nd order uniaxial perfectly matched layers (UPMLs) with the complex-frequency-shifted (CFS) scheme are shown to terminate the relevant finite-difference timedomain (F...
Article
A system-combined alternating-direction-implicit finite-difference time-domain (SC-ADI-FDTD) is fully presented and well corroborated for 3-D electromagnetic applications. Spatial differential operators of Maxwell's equations can be expressed as two matrices with the different time-steps in original ADI-FDTD method. From this matrix form, the syste...
Article
Full-text available
The structural and electronic properties of synergistically modified blue phosphorene (BP) is investigated. The inversion and threefold rotational symmetries of BP are broken. The codoping of group IV and VI impurities can turn monolayer BP into direct bandgap semiconductors. The underlying physical mechanism is that group IV and VI impurities tail...
Article
In this paper, we present an anisotropic metamaterial (AMM) composed of a sub-wavelength metal grating sandwiched with bi-layered double-arrow-shaped (DAS) structure array, which can achieve high-efficiency circular polarization (CP) conversion via giant asymmetric transmission (AT) in terahertz (THz) region. Numerical simulation results indicate t...
Article
Full-text available
A tunable demultiplexer with three output channels infiltrated by liquid crystal (LC) is presented, which is based on a metal-insulator-metal (MIM) waveguide. The operating frequencies of the three output channels can be tuned simultaneously at will by changing the external bias electric field applied to the LC. By analyzing the Fabry-Pérot (FP) re...
Article
A three-dimensional high-order reverse-time migration (3-D HO-RTM) method is proposed to perform subsurface electromagnetic imaging with an ultra-wideband radar (UWBR) system consisting of a multi-input and multi-output antenna array. By using a UWBR system to collect temporal scattering signals, subsurface targets can be detected, and the image of...
Article
Full-text available
Two-dimensional materials (2DMs) such as graphene and black phosphorus (BP) have aroused considerable attentions in the past few years. Engineering and enhancing their light-matter interaction is possible due to their support for localized surface plasmon resonances in the infrared regime. In this paper, we have proposed an infrared broadband absor...
Article
Full-text available
Enhancing the light–matter interaction of graphene is an important issue for related photonic devices and applications. In view of its potential ultraviolet applications, we aim to achieve extremely high ultraviolet absorption in graphene without any nanostructure or microstructure patterning. By manipulating the polarization and angle of incident...
Article
An unsplit-field and accurate Crank-Nicolson-cyclesweep- uniform finite-difference time-domain (CNCSU-FDTD) method based on the complex-frequency-shifted perfectly matched layer (CFS-PML) is proposed. It is applied to three-dimensional (3D) low frequency subsurface electromagnetic sensing problems. The presented CNCSU-FDTD takes advantage of both C...
Article
Full-text available
In order to improve the frequency spectrum availability and evade insecurity frequency range, the cognitive radio is introduced in wireless sensor network (WSN), which constructs the cognitive wireless network (CWN). The dynamic spectrum access (DSA) is used in CWN as the spectrum access scheme. In this paper, sensor nodes of mobile wireless sensor...
Article
Full-text available
Plasmonic crystals (e. g., metallic nanohole arrays and metallic nanoparticle arrays) are widely used in the field of nanophotonics due to their effects on light confinement. Soft nanoimprint lithography is a promising technology for large-scale production of high-quality plasmonic crystals in industry. However, this technology suffers from a high...
Article
Partial discharge (PD) is the manifestation of insulation degradation, and it is regarded as a great risk in the field of industrial high-voltage insulation system. In this paper, the direction-of-arrival (DOA) estimation algorithm is used for the localization of partial-discharge source. The intersecting point of two rays, which come from two diff...
Article
Full-text available
In health monitoring systems, the base station (BS) and the wearable sensors communicate with each other to construct a virtual multiple input and multiple output (VMIMO) system. In real applications, the signal that the BS received is a distributed source because of the scattering, reflection, diffraction and refraction in the propagation path. In...
Article
The corner-free truncation (CFT) strategy is proposed to improve the efficiency of numerical simulation in computational electrodynamics. The spherical boundary, namely the CFT strategy, is built up in the Cartesian coordinate system, which has been implemented via making use of the impedance-matched layer. The proposed CFT strategy is used for ter...
Article
In this paper, the corner-free truncation (CFT) strategy is proposed to terminate the circular boundary out of finite-difference time-domain (FDTD) region. Using the principle of reflection-free optimal thin film, the permittivity ε and the permeability μ have been extended to the complex field. The electric conductivity σe and the equivalent magne...
Article
In mobile communication, the signal that a base station received cannot be regarded as a point source anymore because of the multipath propagation. A distributed source model is more suitable for the realistic scenarios. In this paper, an approach of direction-of-arrival (DOA) estimation is proposed for coherently distributed (CD) sources consistin...
Article
Intelligent transportation systems (ITSs) of industrial systems have played an important role in Internet of things (IOT). The assistant calibration system (ACS) of vehicles is an emerging technology, which services the driver to drive the vehicle safely. To solve some existing problems in ACS such as frequency pairing, vehicle localization judgmen...
Article
An efficient, unsplit-field and unconditional stable implementation of the stretched coordinate perfectly matched layer (SC-PML) is proposed for terminating the finite-difference time-domain (FDTD) method. Via incorporating the Crank-Nicolson Douglas-Gunn (CNDG) and the auxiliary differential equation (ADE) methods, respectively, the proposed PML f...
Conference Paper
Full-text available
For modeling large-scale 3-D problems in electro-magnetic and elastic waves in the probing of complex media, the finite-difference time domain (FDTD) method is widely used. However, there are still challenges in the high-frequency regime and extremely low-frequency regime, as well as in the accurate curved boundary treatment in this method. In this...
Article
The multiple input and multiple output (MIMO) and smart antenna (SA) technique have been widely accepted as promising schemes to improve the spectrum efficiency and coverage of mobile communication systems. The definition of direction-of-arrival (DOA) estimation is that multiple directions of incident signals can be estimated simultaneously by some...
Article
In this paper, a new architecture for the emergency healthcare system based on mobile cloud computation (MCC) and fifth-generation (5G) wireless link is proposed. Based on the processing speed of MCC and the communication rate of 5G scheme, this system can monitor and locate patients in real time. Multiple base stations of the massive multiple inpu...
Article
The -order PMLs based on the unsplit-field formulations and the Z-transform methods are proposed to truncate the finite-difference time-domain (FDTD) domains, which will be validated through numerical simulations whether the higher-order PML with more than two poles, such as , will hold better absorption performance as compared with the conventiona...
Article
Efficient and unsplit-field-based stretched coordinate perfectly matched layer (PML) formulations with the complex frequency-shifted (CFS) scheme that combine the memory-minimized method (Tri-M) and the direct -transform (DZT) method are proposed to truncate the finite-difference time-domain lattices. The proposed algorithm takes advantage of the m...
Article
An effective and unsplit-field implementation of the complex frequency-shifted perfectly matched layer (CFS-PML) based on the Crank-Nicolson-approximate-decoupling (CNAD) and the auxiliary differential equation (ADE) method is proposed to truncate the dispersive finite-difference time-domain (FDTD) domains. The proposed formulations take full advan...
Article
The construction of a battlefield surveillance system is very important for monitoring the attack of enemy aircrafts and missiles, which integrates various sensors and mobile devices. Then, multiple battlefield surveillance systems can be connected together to form a battlefield surveillance network. The mobile nodes can be deployed in a certain re...
Article
Based on the uniaxial anisotropic perfectly matched layer (UPML) with multi poles, unsplit-field implementation of the higher-order PML using the trapezoidal approximation (TA) method is proposed to terminate the finite-difference time-domain (FDTD) computational domains. From the point of view of the Courant-Friedrichs-Levy (CFL) condition, to the...
Article
Full-text available
Efficient Z-transform implementation of the Complex Frequency-Shifted Perfectly Matched Layer (CFS-PML) using the D-B formulations are proposed to truncate open region multi-term dispersive Finite-Difference Time-Domain (FDTD) lattices. These formulations are independent of material properties of the FDTD domains and hence can be used for modeling...
Article
Full-text available
Due to the polarization diversity (PD) of element patterns caused by the varying curvature of the conformal carrier, the conventional direction-of-arrival (DOA) estimation algorithms could not be applied to the conformal array. In order to describe the PD of conformal array, the polarization parameter is considered in the snapshot data model. The p...
Article
Efficient and unsplit-field finite-difference time-domain (FDTD) implementation of the complex frequency-shifted perfectly matched layer (CFS-PML), based on the digital signal processing (DSP) techniques and the material independence relations via applying the electric flux density (D) and the magnetic flux density (B), is proposed for truncating t...
Article
Efficient and unsplit-field higher-order PML formulations using the stretched coordinate perfectly matched layer (SC-PML) formulations and the bilinear Z-Transform (BZT) method are presented for truncating the finite-difference time-domain (FDTD) lattices. This method is completely independent of the material properties of the FDTD computational do...
Article
Efficient and unsplit-field implementations of the higher-order PML based on the digital signal processing (DSP) techniques and the complex frequency shifted perfectly matched layer (CFS-PML) formulations are proposed to truncate the finite-difference time-domain (FDTD) computational domains. The CFS-PML implementation is introduced based on the st...
Article
On the basis of the stretched coordinate perfectly matched layer (SC-PML) formulations, the Z-transform method, and D-B formulation, an efficient and unsplit-field implementation of the higher-order PML scheme with more than one pole is proposed to truncate the finite-difference time-domain (FDTD) lattices. This method is completely independent of...
Article
Based on the stretched coordinate perfectly matched layer (SC-PML) formulations and the auxiliary differential equation (ADE) method, an efficient and unsplit-field implementation of the higher-order PML scheme with more than one pole is proposed to truncate the finite-difference time-domain (FDTD) lattices. The higher-order PML has the advantages...
Article
An efficient and unsplit-field implementation of the higher order perfectly matched layer (PML) based on the stretched coordinate PML (SC-PML) formulations and digital signal processing (DSP) techniques is proposed to truncate the finite-difference time-domain (FDTD) lattices. The higher order PML has the advantages of both the conventional PML and...
Article
With stretched coordinate perfectly matched layer(SC-PML) formulations and Z-transform method, an efficient and unsplit-field implementation of higher-order PML scheme with more than one pole is proposed which truncates finite-difference time-domain(FDTD) lattices. The higher-order PML has advantages of both conventional PML and complex frequency s...
Article
The paper reviews memory-efficient algorithms of the high-order difference equations in the finite-difference time-domain (FDTD) method. In addition, the FDTD pseudo-code is provided for all methods. Through comparing the number of auxiliary variables and the implementation of the different memory-efficient algorithms available in the literature, i...
Article
A novel implementation of the uniaxial perfectly matched layer (UPML) based on the D-H formulations is presented to truncate the finite-difference time-domain (FDTD) lattices. The method of direct discretizing the second-order differential equation is employed by the proposed algorithm in some PML regions. Two numerical tests have been carried out...
Conference Paper
Based on the Z-transform method, a novel, simple and efficient algorithm for implementing the uniaxial perfectly matched layer (UPML) is proposed to truncate the finite-difference time-domain (FDTD) lattices. The main advantage is that, in the PML regions, the proposed algorithm requires minimum auxiliary variables to implement the UPML as compared...
Article
A novel and efficient implementation of the complex frequency shifted perfectly matched layer (CFS-PML) based on the stretched coordinate PML (SC-PML) formulations is proposed for truncating the finite-difference time-domain (FDTD) lattices. For terminating dispersive media, the piecewise-linear recursive convolution (PLRC) is incorporated into the...
Article
Based on the stretched coordinate perfectly matched layer (SC-PML) formulations and the Z-transform method, an efficient and unsplit-field implementation of the higher-order PML scheme with more than one pole is proposed to truncate the finite-difference time-domain (FDTD) lattices. The higher-order PML has the advantages of both the conventional P...

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