Pinghui Wu
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View article: Nanocarrier-based immunotherapy for viral diseases
Nanocarrier-based immunotherapy for viral diseases Open
The global morbidity and mortality associated with viral diseases pose a major threat to public health security and cause significant economic losses worldwide. Developing novel prophylactic and therapeutic interventions remains an urgent …
View article: High Absorption Broadband Ultra-Long Infrared Absorption Device Based on Nanoring–Nanowire Metasurface Structure
High Absorption Broadband Ultra-Long Infrared Absorption Device Based on Nanoring–Nanowire Metasurface Structure Open
Long-wave infrared (LWIR) broadband absorption is of great significance in science and technology. The electromagnetic field energy is absorbed by the metamaterials material, leading to the enhanced light absorption, from which the Metal–D…
View article: Graphene-Based Absorber: Tunable, Highly Sensitive, Six-Frequency
Graphene-Based Absorber: Tunable, Highly Sensitive, Six-Frequency Open
Due to the equipartition exciton property of graphene metamaterials, researchers have applied them to the design of absorbers and developed a series of absorbers covering different wavebands (including narrowband and broadband). In this pa…
View article: Highly Efficient Color Tuning of Lithium Niobate Nanostructures on Flexible Substrate
Highly Efficient Color Tuning of Lithium Niobate Nanostructures on Flexible Substrate Open
Nanostructures based on flexible material are essential for modulating reflected colors by actively changing the unit structure. However, current nanostructures face challenges in achieving active and efficient modulation across a broader …
View article: Light focusing of aluminium film-coated capsule-shaped particles with penetrated cylinder
Light focusing of aluminium film-coated capsule-shaped particles with penetrated cylinder Open
Microsphere-assisted imaging technology has proven to be a powerful tool for breaking through the Abbe diffraction limit. Appropriate innovation of microsphere structures is of great significance for the design of microlenses. In this pape…
View article: Broadband Solar Absorber and Thermal Emitter Based on Single-Layer Molybdenum Disulfide
Broadband Solar Absorber and Thermal Emitter Based on Single-Layer Molybdenum Disulfide Open
In recent years, solar energy has become popular because of its clean and renewable properties. Meanwhile, two-dimensional materials have become a new favorite in scientific research due to their unique physicochemical properties. Among th…
View article: Photonic Crystal Fiber Based on Surface Plasmon Resonance Used for Two Parameter Sensing for Magnetic Field and Temperature
Photonic Crystal Fiber Based on Surface Plasmon Resonance Used for Two Parameter Sensing for Magnetic Field and Temperature Open
This paper presents a photonic crystal fiber (PCF) sensor that can be used to measure the temperature and magnetic field simultaneously, and to monitor the changes in them in the environment. When we designed the fiber structure, two circu…
View article: Enhancing the Overall Performance of Perovskite Solar Cells with a Nano-Pyramid Anti-Reflective Layer
Enhancing the Overall Performance of Perovskite Solar Cells with a Nano-Pyramid Anti-Reflective Layer Open
Perovskite solar cells (PSCs) still suffer from varying degrees of optical and electrical losses. To enhance the light decoupling and capture ability of Planar PSCs, an ultra-thin PSC structure with an Al2O3 pyramid anti-reflection layer (…
View article: Multi-functional metasurface: ultra-wideband/multi-band absorption switching by adjusting guided-mode resonance and local surface plasmon resonance effects
Multi-functional metasurface: ultra-wideband/multi-band absorption switching by adjusting guided-mode resonance and local surface plasmon resonance effects Open
This study introduces an innovative dual-tunable absorption film with the capability to switch between ultra-wideband and narrowband absorption. By manipulating the temperature, the film can achieve multi-band absorption within the 30–45 T…
View article: Actively Tunable “Single Peak/Broadband” Absorbent, Highly Sensitive Terahertz Smart Device Based on VO2
Actively Tunable “Single Peak/Broadband” Absorbent, Highly Sensitive Terahertz Smart Device Based on VO2 Open
In recent years, the development of terahertz (THz) technology has attracted significant attention. Various tunable devices for THz waves (0.1 THz–10 THz) have been proposed, including devices that modulate the amplitude, polarization, pha…
View article: Temperature-Controlled Switchable Photonic Nanojet Generated by Truncated Cylindrical Structure
Temperature-Controlled Switchable Photonic Nanojet Generated by Truncated Cylindrical Structure Open
We propose a novel micro-nano structure that can realize a photonic nanojet (PNJ) switch by adjusting the temperature, which is composed of a truncated cylinder coated with a thin vanadium dioxide (VO2) film. The influence of temperature o…
View article: Active Broadband Absorber Based on Phase-Change Materials Optimized via Evolutionary Algorithm
Active Broadband Absorber Based on Phase-Change Materials Optimized via Evolutionary Algorithm Open
This article proposes a temperature-controlled absorber based on VO2, which consists of five layers: a disk-shaped VO2 layer array, a dielectric layer, a circular hole VO2 array, a SiO2 layer, and a gold substrate from top to bottom. We op…
View article: Highly localized continuous wave optical vortex with controllable orbital angular momentum orientation and topological charge
Highly localized continuous wave optical vortex with controllable orbital angular momentum orientation and topological charge Open
We report an approach to simultaneously control orbital angular momentum (OAM) orientation and topological charge in highly localized optical vortices by employing a 4π focusing system. The required continuous wave illumination field in th…
View article: Design of Surface Plasmon Resonance-Based D-Type Double Open-Loop Channels PCF for Temperature Sensing
Design of Surface Plasmon Resonance-Based D-Type Double Open-Loop Channels PCF for Temperature Sensing Open
Here, we document a D-type double open-loop channel floor plasmon resonance (SPR) photonic crystal fiber (PCF) for temperature sensing. The grooves are designed on the polished surfaces of the pinnacle and backside of the PCF and covered w…
View article: Oridonin inhibits the occurrence and development of colorectal cancer by reversing the Warburg effect via reducing PKM2 dimer formation and preventing its entry into the nucleus
Oridonin inhibits the occurrence and development of colorectal cancer by reversing the Warburg effect via reducing PKM2 dimer formation and preventing its entry into the nucleus Open
Our study first shows that ORI could have anticancer activity by inhibiting the Warburg effect as a novel activator of PKM2.
View article: Generation of Photonic Nanojet Using Gold Film Dielectric Microdisk Structure
Generation of Photonic Nanojet Using Gold Film Dielectric Microdisk Structure Open
Due to their narrow beam waist size, high intensity, and long propagation distance, photonic nanojets (PNJs) can be used in various fields such as nanoparticle sensing, optical subwavelength detection, and optical data storage. In this pap…
View article: Multimode tunable terahertz absorber based on a quarter graphene disk structure
Multimode tunable terahertz absorber based on a quarter graphene disk structure Open
In this research work, in order to solve the unadjustability of traditional noble metal absorbers to meet the complex application requirements in the actual electromagnetic environment, we designed a simple tunable absorber based on graphe…
View article: High-sensitivity and throughput optical fiber SERS probes based on laser-induced fractional reaction method
High-sensitivity and throughput optical fiber SERS probes based on laser-induced fractional reaction method Open
Surface-enhanced Raman scattering (SERS) is widely used in many fields, such as biosensors, medical diagnostics, materials science, and food security. Here, we report a low-cost, high-throughput laser-induced fractional reaction method for…
View article: Design of two-dimensional sampled Bragg grating for a curved waveguide
Design of two-dimensional sampled Bragg grating for a curved waveguide Open
Due to the ability of changing light propagation path direction, curved waveguide Bragg grating (CWG) plays an important role in photonic integrated circuits. In this paper, we proposed a cascaded sampled Bragg grating on tilted waveguide …
View article: Numerical and Experimental Study on Thermal Damage Induced by Medium—Infrared Laser
Numerical and Experimental Study on Thermal Damage Induced by Medium—Infrared Laser Open
We studied the laser-induced thermal damage on the surface of a single crystal silicon mirror illuminated by a mid-infrared intense laser. We used mid−infrared quasi-continuous wave lasers to irradiate the surface of the single−crystal sil…
View article: Highly sensitive sensing of a magnetic field and temperature based on two open ring channels SPR-PCF
Highly sensitive sensing of a magnetic field and temperature based on two open ring channels SPR-PCF Open
A surface plasmon resonance (SPR) sensor comprising photonic crystal fiber (PCF) is designed for magnetic field and temperature dual-parameter sensing. In order to make the SPR detection of magnetic field and temperature effectively, the t…
View article: Design of Ultra-Narrow Band Graphene Refractive Index Sensor
Design of Ultra-Narrow Band Graphene Refractive Index Sensor Open
The paper proposes an ultra-narrow band graphene refractive index sensor, consisting of a patterned graphene layer on the top, a dielectric layer of SiO2 in the middle, and a bottom Au layer. The absorption sensor achieves the absorption e…
View article: Perfect Absorption of Fan-Shaped Graphene Absorbers with Good Adjustability in the Mid-Infrared
Perfect Absorption of Fan-Shaped Graphene Absorbers with Good Adjustability in the Mid-Infrared Open
This paper presents a graphene metamaterial absorber based on impedance matching. A finite difference in time domain (FDTD) method is used to achieve a theoretically perfect absorption in the mid-infrared band. A basis is created for the m…
View article: Performance Evaluation of Bimetallic Surface Plasmon Resonance Biosensor Based on Copper and MXene(Ti3C2Tx)
Performance Evaluation of Bimetallic Surface Plasmon Resonance Biosensor Based on Copper and MXene(Ti3C2Tx) Open
Copper having high electrical conductivity can be a candidate for the plasmonic metal. MXene (Ti 3 C 2 T x ) is an emerging two-dimensional material can be used in the biosensing field considering its excellent metallic conductivity and hy…
View article: Grating Structure Broadband Absorber Based on Gallium Arsenide and Titanium
Grating Structure Broadband Absorber Based on Gallium Arsenide and Titanium Open
We designed a broadband absorber based on a multilayer grating structure composed of gallium arsenide and titanium. The basic unit is a grating structure stacked on top of a semiconductor of gallium arsenide and titanium metal. We used the…
View article: The Structure Design and Photoelectric Properties of Wideband High Absorption Ge/GaAs/P3HT:PCBM Solar Cells
The Structure Design and Photoelectric Properties of Wideband High Absorption Ge/GaAs/P3HT:PCBM Solar Cells Open
Using the finite-difference time-domain (FDTD) method, we designed an ultra-thin Ge/GaAs/P3HT:PCBM hybrid solar cell (HSC), which showed good effects of ultra-wideband (300 nm–1200 nm), high absorption, and a short-circuit current density …
View article: Design and Photoelectric Performance of Perfect Solar Absorber Based on GaAs Grating
Design and Photoelectric Performance of Perfect Solar Absorber Based on GaAs Grating Open
In recent years, solar energy has received extensive attention as a clean and renewable energy. We present a perfect broadband solar absorber based on tungsten and semiconductor GaAs in this paper. The structure of GaAs grating-GaAs film-W…
View article: Multi-mode surface plasmon resonance absorber based on dart-type single-layer graphene
Multi-mode surface plasmon resonance absorber based on dart-type single-layer graphene Open
We propose a multi-mode surface plasmon resonance absorber based on dart-type single-layer graphene, it has advantages of polarization independence, tunability and high sensitivity. Four modes of polarization-independent perfect absorption…
View article: High-<i>Q</i>refractive index sensors based on all-dielectric metasurfaces
High-<i>Q</i>refractive index sensors based on all-dielectric metasurfaces Open
A high-sensitivity refractive index sensor excited by the 2D periodic TiO 2 dielectric grating structure. The nanosensor can excite guided-mode resonance with a 0.19 nm ultra-narrow linewidth. Low loss all-dielectric metasurface allows ult…