Chun Jiang
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View article: Extreme Learning Machine-Autoregression Integrated Moving Average Composite Model
Extreme Learning Machine-Autoregression Integrated Moving Average Composite Model Open
Excessive carbon dioxide emissions are the primary factor causing global warming. Currently, models for controlling carbon dioxide emissions mainly focus on population, economy, and technology. A significant amount of research has been con…
View article: Defects Induced Vcd-Cdin2s4 Nanosheets for Enhanced Photocatalytic Hydrogen Evolution
Defects Induced Vcd-Cdin2s4 Nanosheets for Enhanced Photocatalytic Hydrogen Evolution Open
View article: Molecular dynamics and FDTD method synergistic modulation for surface emission in luminescent glass by metal nanoparticles
Molecular dynamics and FDTD method synergistic modulation for surface emission in luminescent glass by metal nanoparticles Open
Luminescent glass is widely used in industries such as lasers and communications. Metal nanoparticles have a significant effect on the emission properties of luminescent glass, but quantitative control of this effect remains challenging du…
View article: Enhanced surface emission of bismuth-ion doped glass by adding metal nanoparticles
Enhanced surface emission of bismuth-ion doped glass by adding metal nanoparticles Open
Enhancing the luminescent properties of doped silica glass has garnered significant interest due to its potential applications in photonics and optoelectronics. In this study, we enhance the surface emission of bismuth(Bi)-doped silica gla…
View article: Tailoring emission spectra by using core-shell nanostructures with a random forest algorithm
Tailoring emission spectra by using core-shell nanostructures with a random forest algorithm Open
We propose a scheme to tailor emission spectra through the engineering of the local density of states by using core-shell nanostructures. A random forest algorithm is used to train a forward model for spectrum prediction and an inverse mod…
View article: Predictive factors of stress urinary incontinence after Holmium Laser Enucleation of the Prostate: a magnetic resonance imaging-based retrospective study
Predictive factors of stress urinary incontinence after Holmium Laser Enucleation of the Prostate: a magnetic resonance imaging-based retrospective study Open
The risk of SUI post-HoLEP is significantly associated with OT, TPWMUS, and PAOMU, while MUV imparting a protective effect.
View article: Modulation of the emission spectrum of rare-earth ions using inverse-designed photonic crystals cavities
Modulation of the emission spectrum of rare-earth ions using inverse-designed photonic crystals cavities Open
Rare-earth elements play an indispensable role in the optical communication and laser industries, due to their superior luminescent properties. Nevertheless, the selective enhancement and suppression of different emission bands during ener…
View article: Manipulating multiple optical parametric processes in photonic topological insulators
Manipulating multiple optical parametric processes in photonic topological insulators Open
Topological quantum optics, an emerging area of study, holds the potential to bring about substantial enhancements for integrated quantum devices. Here we propose integrated topological quantum devices performing various functions includin…
View article: On-chip topological transport of optical frequency combs in silicon-based valley photonic crystals
On-chip topological transport of optical frequency combs in silicon-based valley photonic crystals Open
The generation and control of optical frequency combs in integrated photonic systems enables complex, high-controllable, and large-scale devices. In parallel, harnessing topological physics in multipartite systems has allowed them with com…
View article: High-Performance Passivating Contacts for Si PV Based on Engineered, Doped Nanopinholes through Dielectric Layers
High-Performance Passivating Contacts for Si PV Based on Engineered, Doped Nanopinholes through Dielectric Layers Open
We present a novel, industrially relevant method to fabricate high-performance poly-Si passivating contacts for Si PV. Passivating contacts based on SiOx/poly-Si layer stacks have been implemented in record-efficiency homojunction Si solar…
View article: Topological dissipative Kerr soliton combs in a valley photonic crystal resonator
Topological dissipative Kerr soliton combs in a valley photonic crystal resonator Open
Topological phases have become an enabling role in exploiting new applications of nonlinear optics in recent years. Here we theoretically propose a valley photonic crystal resonator emulating topologically protected dissipative Kerr solito…
View article: Exchange Rate Appreciations and the Distribution of Productivity: Is Importing Inputs Sustainable for Emerging Countries?
Exchange Rate Appreciations and the Distribution of Productivity: Is Importing Inputs Sustainable for Emerging Countries? Open
A static model is used to investigate how the exchange rate movement affect the distribution of productivity within an industry. Quantile regression is then used to empirically test the effects of RMB exchange rate appreciation on the dist…
View article: Transmittance Prediction and Inverse Design of Microring Resonator Channel Dropping Filters With Deep Learning
Transmittance Prediction and Inverse Design of Microring Resonator Channel Dropping Filters With Deep Learning Open
We propose a method to use deep learning to achieve transmittance prediction and inverse design of microring resonator channel dropping filters. We transform the transmittance prediction and inverse design into model training problems, whi…
View article: Exchange Rates, Optimization of Industrial Resources Allocation Efficiency, and Environmental Pollution: Evidence from China Manufacturing
Exchange Rates, Optimization of Industrial Resources Allocation Efficiency, and Environmental Pollution: Evidence from China Manufacturing Open
The impact of exchange-rate fluctuations on resource reallocation is of particular interest to researchers and policymakers with China’s further opening to the international market and the transformation of economic growth. With high-speed…
View article: Epitaxial Dirac Semimetal Vertical Heterostructures for Advanced Device Architectures
Epitaxial Dirac Semimetal Vertical Heterostructures for Advanced Device Architectures Open
Exploiting the extraordinary transport and optical properties of 3D topological semimetals for device applications requires epitaxial integration with semiconductors to carefully control carrier transport, yet no studies have established h…
View article: Research on Modulation Recognition Method in Low SNR Based on LSTM
Research on Modulation Recognition Method in Low SNR Based on LSTM Open
Modulation mode recognition of radio signal is a committed step between signal detection and signal demodulation. At present, quite a lot studies have fully proved that deep learning algorithms can effectively identify the modulation patte…
View article: Thermal conductivity of two-dimensional group IV-element thermocrystals
Thermal conductivity of two-dimensional group IV-element thermocrystals Open
A thermocrystal is a type of periodic structure bandgap material that can control heat flux transmission and reflection. In this paper, we use and improve a model based on the kinetic theory of transport processes to calculate the correspo…
View article: Topological protection of continuous frequency entangled biphoton states
Topological protection of continuous frequency entangled biphoton states Open
Topological quantum optics that manipulates the topological protection of quantum states has attracted special interests in recent years. Here we demonstrate valley photonic crystals implementing topologically protected transport of the co…
View article: Broadband Transmission Properties of cBN-Si Interfaces
Broadband Transmission Properties of cBN-Si Interfaces Open
We analyze the real and imaginary parts of cBN in a broad wavelength range both 0.5-1.0 µm and 1.36-10 µm respectively, and use both Fresnel theory and Meep software package to calculate the transmittance and reflectance. The theoretical a…
View article: Thermally switching between perfect absorber and asymmetric transmission in vanadium dioxide-assisted metamaterials
Thermally switching between perfect absorber and asymmetric transmission in vanadium dioxide-assisted metamaterials Open
In this paper, we propose a switchable bi-functional metamaterial device based on a hybrid gold-vanadium dioxide (VO 2 ) nanostructure. Utilizing the property of a metal-to-insulator transition in VO 2 , perfect absorption and asymmetric t…
View article: Ultrahigh-efficiency Enhanced Four-wave-mixing in Si-Ge-Graphene Photonic Crystal Waveguide
Ultrahigh-efficiency Enhanced Four-wave-mixing in Si-Ge-Graphene Photonic Crystal Waveguide Open
Background: All-optical processing has a huge superiority in speed and efficiency than traditional optical-electrical-optical signal processing. Four-wave-mixing is an important nonlinear parametric process to achieve all-optical processin…
View article: Modifying emission spectra by using structured waveguides
Modifying emission spectra by using structured waveguides Open
We present an approach to modify emission spectra of amplifiers by local density of states engineering with structured waveguides. More specifically, an inverse design algorithm is adopted to obtain the geometric parameters of the proposed…
View article: Reverse design of microring resonator channel dropping filters
Reverse design of microring resonator channel dropping filters Open
We present a reverse solving design approach to achieve accurate control over the response shapes and resonant peak positions of channel dropping filters implemented by coupled microring resonators. From performance to geometry, we obtain …
View article: Giant enhancement of emission intensity by using microcavity
Giant enhancement of emission intensity by using microcavity Open
View article: Tunable Anisotropic Perfect Enhancement Absorption in Black Phosphorus-Based Metasurfaces
Tunable Anisotropic Perfect Enhancement Absorption in Black Phosphorus-Based Metasurfaces Open
In this work, we theoretically propose an anisotropic metasurface absorber, unit cell of which consists of a continuous monolayer black phosphorus (BP) sheet, sandwiched between a circular silver ring and a dielectric layer stacking on a s…
View article: Expanding the bandgap of thermal phonons by using supercrystals
Expanding the bandgap of thermal phonons by using supercrystals Open
Thermocrystals constitute a new type of periodic material that can be used to control heat flow. An important issue is how to widen the bandgap of thermocrystals to cover more of the thermal spectrum, and this is related to the efficiency …
View article: From Modules to Atoms: Techniques and Characterization for Identifying and Understanding Device-Level Photovoltaic Degradation Mechanisms
From Modules to Atoms: Techniques and Characterization for Identifying and Understanding Device-Level Photovoltaic Degradation Mechanisms Open
This report documents how degraded modules are analyzed for the characterization of cell-level performance reduction. The primary degradation topics presented here are 1) potential-induced degradation, 2) defect metastability and impurity …
View article: Seamless multiband near-infrared emission covering 1200–2100 nm with double wavelength excitations
Seamless multiband near-infrared emission covering 1200–2100 nm with double wavelength excitations Open
We prepare three types of triply-doped-telluride glasses using the melting method. Under simultaneous dual-lasers (808 nm and 980 nm) excitation, seamless multiband near-infrared emission covering 1200–2100 nm is observed in the glasses fo…
View article: Broadband transmission properties of graphene-dielectric interfaces
Broadband transmission properties of graphene-dielectric interfaces Open
View article: Facile approach towards the fabrication of compact and miniature Er<sup>3+</sup>-doped waveguide amplifiers
Facile approach towards the fabrication of compact and miniature Er<sup>3+</sup>-doped waveguide amplifiers Open
Compact and miniature optical amplifiers operating in the near-infrared wavelength range are in ever-increasing-demand for integrated optical communication devices and subsystems. Due to low dopant concentration and the relatively large si…